Error login first:
tmhOAuth Object
(
    [response] => Array
        (
            [raw] => 
            [code] => 0
            [response] => 
            [info] => Array
                (
                    [url] => https://api.twitter.com/oauth/request_token
                    [content_type] => 
                    [http_code] => 0
                    [header_size] => 0
                    [request_size] => 0
                    [filetime] => -1
                    [ssl_verify_result] => -8179
                    [redirect_count] => 0
                    [total_time] => 0.007897
                    [namelookup_time] => 0.007783
                    [connect_time] => 0.016693
                    [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] => 162.159.140.229
                    [certinfo] => Array
                        (
                        )
                    [primary_port] => 443
                    [local_ip] => 195.201.114.194
                    [local_port] => 42868
                )
            [error] => Peer's Certificate issuer is not recognized.
            [errno] => 60
        )
    [params] => Array
        (
        )
    [headers] => Array
        (
            [Authorization] => OAuth oauth_callback="https%3A%2F%2Frhodesign.gr%2Fmy-account%2F", oauth_consumer_key="", oauth_nonce="cb55b97fe061e8935ff243a56af67e77", oauth_signature="e99LbFCTNzX89zbK1JDGl4Y2IZU%3D", oauth_signature_method="HMAC-SHA1", oauth_timestamp="1762238463", oauth_version="1.0"
        )
    [auto_fixed_time] => 
    [buffer] => 
    [config] => Array
        (
            [user_agent] => tmhOAuth 0.7.2+SSL - //github.com/themattharris/tmhOAuth
            [timezone] => UTC
            [use_ssl] => 1
            [host] => api.twitter.com
            [consumer_key] => 
            [consumer_secret] => 
            [user_token] => 
            [user_secret] => 
            [force_nonce] => 
            [nonce] => cb55b97fe061e8935ff243a56af67e77
            [force_timestamp] => 
            [timestamp] => 1762238463
            [oauth_version] => 1.0
            [oauth_signature_method] => HMAC-SHA1
            [curl_connecttimeout] => 30
            [curl_timeout] => 10
            [curl_ssl_verifyhost] => 2
            [curl_ssl_verifypeer] => 1
            [curl_cainfo] => /var/www/vhosts/rhodesign.gr/httpdocs/wp-content/plugins/RegistrationFields/tmhOAuth/cacert.pem
            [curl_capath] => /var/www/vhosts/rhodesign.gr/httpdocs/wp-content/plugins/RegistrationFields/tmhOAuth
            [curl_followlocation] => 
            [curl_proxy] => 
            [curl_proxyuserpwd] => 
            [curl_encoding] => 
            [is_streaming] => 
            [streaming_eol] => 
            [streaming_metrics_interval] => 60
            [as_header] => 1
            [debug] => 
            [token] => 
            [secret] => 
            [multipart] => 
        )
    [method] => GET
    [url] => https://api.twitter.com/oauth/request_token
    [signing_params] => oauth_callback=https%3A%2F%2Frhodesign.gr%2Fmy-account%2F&oauth_consumer_key=&oauth_nonce=cb55b97fe061e8935ff243a56af67e77&oauth_signature_method=HMAC-SHA1&oauth_timestamp=1762238463&oauth_version=1.0
    [auth_params] => Array
        (
            [oauth_callback] => https%3A%2F%2Frhodesign.gr%2Fmy-account%2F
            [oauth_consumer_key] => 
            [oauth_nonce] => cb55b97fe061e8935ff243a56af67e77
            [oauth_signature] => e99LbFCTNzX89zbK1JDGl4Y2IZU%3D
            [oauth_signature_method] => HMAC-SHA1
            [oauth_timestamp] => 1762238463
            [oauth_version] => 1.0
        )
    [request_params] => Array
        (
        )
    [base_string] => GET&https%3A%2F%2Fapi.twitter.com%2Foauth%2Frequest_token&oauth_callback%3Dhttps%253A%252F%252Frhodesign.gr%252Fmy-account%252F%26oauth_consumer_key%3D%26oauth_nonce%3Dcb55b97fe061e8935ff243a56af67e77%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1762238463%26oauth_version%3D1.0
    [signing_key] => &
    [auth_header] => OAuth oauth_callback="https%3A%2F%2Frhodesign.gr%2Fmy-account%2F", oauth_consumer_key="", oauth_nonce="cb55b97fe061e8935ff243a56af67e77", oauth_signature="e99LbFCTNzX89zbK1JDGl4Y2IZU%3D", oauth_signature_method="HMAC-SHA1", oauth_timestamp="1762238463", oauth_version="1.0"
)