I can't send email email (stream_socket_enable_crypto(): SSL operation failed with code 1.)

I can't send email it always says PHP Warning: stream_socket_enable_crypto(): SSL operation failed with code 1. OpenSSL Error messages: error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number in /home/codicubao/public_html/vendor/phpmailer/phpmailer/class.smtp.php on line 343 what should I do? I already have a certificate.