Error connection to MC Class!:
GuzzleHttp\Exception\ConnectException Object
(
    [message:protected] => cURL error 35: OpenSSL SSL_connect: Connection reset by peer in connection to us21.api.mailchimp.com:443  (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://us21.api.mailchimp.com/3.0/ping
    [string:Exception:private] => 
    [code:protected] => 0
    [file:protected] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac/vendors/polylang/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php
    [line:protected] => 210
    [trace:Exception:private] => Array
        (
            [0] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac/vendors/polylang/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php
                    [line] => 158
                    [function] => createRejection
                    [class] => GuzzleHttp\Handler\CurlFactory
                    [type] => ::
                )

            [1] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac/vendors/polylang/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php
                    [line] => 110
                    [function] => finishError
                    [class] => GuzzleHttp\Handler\CurlFactory
                    [type] => ::
                )

            [2] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac/vendors/polylang/vendor/guzzlehttp/guzzle/src/Handler/CurlHandler.php
                    [line] => 47
                    [function] => finish
                    [class] => GuzzleHttp\Handler\CurlFactory
                    [type] => ::
                )

            [3] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac/vendors/polylang/vendor/guzzlehttp/guzzle/src/Handler/Proxy.php
                    [line] => 28
                    [function] => __invoke
                    [class] => GuzzleHttp\Handler\CurlHandler
                    [type] => ->
                )

            [4] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac/vendors/polylang/vendor/guzzlehttp/guzzle/src/Handler/Proxy.php
                    [line] => 48
                    [function] => GuzzleHttp\Handler\{closure}
                    [class] => GuzzleHttp\Handler\Proxy
                    [type] => ::
                )

            [5] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac/vendors/polylang/vendor/guzzlehttp/guzzle/src/PrepareBodyMiddleware.php
                    [line] => 35
                    [function] => GuzzleHttp\Handler\{closure}
                    [class] => GuzzleHttp\Handler\Proxy
                    [type] => ::
                )

            [6] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac/vendors/polylang/vendor/guzzlehttp/guzzle/src/Middleware.php
                    [line] => 31
                    [function] => __invoke
                    [class] => GuzzleHttp\PrepareBodyMiddleware
                    [type] => ->
                )

            [7] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac/vendors/polylang/vendor/guzzlehttp/guzzle/src/RedirectMiddleware.php
                    [line] => 71
                    [function] => GuzzleHttp\{closure}
                    [class] => GuzzleHttp\Middleware
                    [type] => ::
                )

            [8] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac/vendors/polylang/vendor/guzzlehttp/guzzle/src/Middleware.php
                    [line] => 63
                    [function] => __invoke
                    [class] => GuzzleHttp\RedirectMiddleware
                    [type] => ->
                )

            [9] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac/vendors/polylang/vendor/guzzlehttp/guzzle/src/HandlerStack.php
                    [line] => 75
                    [function] => GuzzleHttp\{closure}
                    [class] => GuzzleHttp\Middleware
                    [type] => ::
                )

            [10] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac/vendors/polylang/vendor/guzzlehttp/guzzle/src/Client.php
                    [line] => 331
                    [function] => __invoke
                    [class] => GuzzleHttp\HandlerStack
                    [type] => ->
                )

            [11] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac/vendors/polylang/vendor/guzzlehttp/guzzle/src/Client.php
                    [line] => 106
                    [function] => transfer
                    [class] => GuzzleHttp\Client
                    [type] => ->
                )

            [12] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac/vendors/polylang/vendor/guzzlehttp/guzzle/src/Client.php
                    [line] => 123
                    [function] => sendAsync
                    [class] => GuzzleHttp\Client
                    [type] => ->
                )

            [13] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac-newsletter/lib/mc/mailchimp-marketing-php/lib/Api/PingApi.php
                    [line] => 79
                    [function] => send
                    [class] => GuzzleHttp\Client
                    [type] => ->
                )

            [14] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac-newsletter/lib/mc/mailchimp-marketing-php/lib/Api/PingApi.php
                    [line] => 68
                    [function] => getWithHttpInfo
                    [class] => MailchimpMarketing\Api\PingApi
                    [type] => ->
                )

            [15] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac-newsletter/lib/mc/mailchimp-class.php
                    [line] => 82
                    [function] => get
                    [class] => MailchimpMarketing\Api\PingApi
                    [type] => ->
                )

            [16] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/animac-newsletter/lib/mc/settings-mc.php
                    [line] => 23
                    [function] => ping
                    [class] => AnimacMailchimp
                    [type] => ->
                )

            [17] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-includes/class-wp-hook.php
                    [line] => 324
                    [function] => animac_settings_newsletter_mailchimp_metaboxes
                )

            [18] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-includes/plugin.php
                    [line] => 205
                    [function] => apply_filters
                    [class] => WP_Hook
                    [type] => ->
                )

            [19] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-content/plugins/meta-box/inc/core.php
                    [line] => 25
                    [function] => apply_filters
                )

            [20] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-includes/class-wp-hook.php
                    [line] => 324
                    [function] => register_meta_boxes
                    [class] => RWMB_Core
                    [type] => ->
                )

            [21] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-includes/class-wp-hook.php
                    [line] => 348
                    [function] => apply_filters
                    [class] => WP_Hook
                    [type] => ->
                )

            [22] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-includes/plugin.php
                    [line] => 517
                    [function] => do_action
                    [class] => WP_Hook
                    [type] => ->
                )

            [23] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-settings.php
                    [line] => 695
                    [function] => do_action
                )

            [24] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-config.php
                    [line] => 116
                    [args] => Array
                        (
                            [0] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-settings.php
                        )

                    [function] => require_once
                )

            [25] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-load.php
                    [line] => 50
                    [args] => Array
                        (
                            [0] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-config.php
                        )

                    [function] => require_once
                )

            [26] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-blog-header.php
                    [line] => 13
                    [args] => Array
                        (
                            [0] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-load.php
                        )

                    [function] => require_once
                )

            [27] => Array
                (
                    [file] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/index.php
                    [line] => 17
                    [args] => Array
                        (
                            [0] => /home/rdrsites-backend/htdocs/backend.rdrsites.net/wp-blog-header.php
                        )

                    [function] => require
                )

        )

    [previous:Exception:private] => 
    [request:GuzzleHttp\Exception\ConnectException:private] => GuzzleHttp\Psr7\Request Object
        (
            [method:GuzzleHttp\Psr7\Request:private] => GET
            [requestTarget:GuzzleHttp\Psr7\Request:private] => 
            [uri:GuzzleHttp\Psr7\Request:private] => GuzzleHttp\Psr7\Uri Object
                (
                    [scheme:GuzzleHttp\Psr7\Uri:private] => https
                    [userInfo:GuzzleHttp\Psr7\Uri:private] => 
                    [host:GuzzleHttp\Psr7\Uri:private] => us21.api.mailchimp.com
                    [port:GuzzleHttp\Psr7\Uri:private] => 
                    [path:GuzzleHttp\Psr7\Uri:private] => /3.0/ping
                    [query:GuzzleHttp\Psr7\Uri:private] => 
                    [fragment:GuzzleHttp\Psr7\Uri:private] => 
                    [composedComponents:GuzzleHttp\Psr7\Uri:private] => https://us21.api.mailchimp.com/3.0/ping
                )

            [headers:GuzzleHttp\Psr7\Request:private] => Array
                (
                    [Host] => Array
                        (
                            [0] => us21.api.mailchimp.com
                        )

                    [User-Agent] => Array
                        (
                            [0] => Swagger-Codegen/3.0.78/php
                        )

                    [Accept] => Array
                        (
                            [0] => application/json
                        )

                    [Content-Type] => Array
                        (
                            [0] => application/json
                        )

                    [Authorization] => Array
                        (
                            [0] => Bearer 20bd60676d2df23b51cfac14e7d9dddf
                        )

                )

            [headerNames:GuzzleHttp\Psr7\Request:private] => Array
                (
                    [host] => Host
                    [user-agent] => User-Agent
                    [accept] => Accept
                    [content-type] => Content-Type
                    [authorization] => Authorization
                )

            [protocol:GuzzleHttp\Psr7\Request:private] => 1.1
            [stream:GuzzleHttp\Psr7\Request:private] => GuzzleHttp\Psr7\Stream Object
                (
                    [stream:GuzzleHttp\Psr7\Stream:private] => Resource id #635
                    [size:GuzzleHttp\Psr7\Stream:private] => 0
                    [seekable:GuzzleHttp\Psr7\Stream:private] => 1
                    [readable:GuzzleHttp\Psr7\Stream:private] => 1
                    [writable:GuzzleHttp\Psr7\Stream:private] => 1
                    [uri:GuzzleHttp\Psr7\Stream:private] => php://temp
                    [customMetadata:GuzzleHttp\Psr7\Stream:private] => Array
                        (
                        )

                )

        )

    [handlerContext:GuzzleHttp\Exception\ConnectException:private] => Array
        (
            [errno] => 35
            [error] => OpenSSL SSL_connect: Connection reset by peer in connection to us21.api.mailchimp.com:443 
            [appconnect_time] => 0
            [url] => https://us21.api.mailchimp.com/3.0/ping
            [content_type] => 
            [http_code] => 0
            [header_size] => 0
            [request_size] => 0
            [filetime] => -1
            [ssl_verify_result] => 1
            [redirect_count] => 0
            [total_time] => 6.875838
            [namelookup_time] => 0.006821
            [connect_time] => 0.02129
            [pretransfer_time] => 0
            [size_upload] => 0
            [size_download] => 0
            [speed_download] => 0
            [speed_upload] => 0
            [download_content_length] => -1
            [upload_content_length] => -1
            [starttransfer_time] => 0
            [redirect_time] => 0
            [redirect_url] => 
            [primary_ip] => 23.194.139.144
            [certinfo] => Array
                (
                )

            [primary_port] => 443
            [local_ip] => 192.168.0.100
            [local_port] => 51304
            [http_version] => 0
            [protocol] => 2
            [ssl_verifyresult] => 0
            [scheme] => HTTPS
            [appconnect_time_us] => 0
            [connect_time_us] => 21290
            [namelookup_time_us] => 6821
            [pretransfer_time_us] => 0
            [redirect_time_us] => 0
            [starttransfer_time_us] => 0
            [total_time_us] => 6875838
            [effective_method] => GET
            [curl_version] => 7.74.0
        )

)