Php Catchable Fatal Error

Taking a look at my error log, I found lots and lots of errors all referring to the same line on the same file:

PHP Catchable fatal error: session_regenerate_id(): Failed to create(read) session ID: user (path: /var/cpanel/php/sessions/ea-php70) in /home/******/public_html/app/Tygh/Web/Session.php on line 343

does someone knows what this is and how to fix it?