Fatal error: During inheritance of SessionHandlerInterface: Uncaught ArgumentCountError: Too few arguments to function MRBS\error_handler(), 4 passed in /var/www/web107/htdocs/booker2/web/lib/MRBS/SessionHandlerDb.php on line 11 and exactly 5 expected in /var/www/web107/htdocs/booker2/web/functions_error.inc:72 Stack trace: #0 /var/www/web107/htdocs/booker2/web/lib/MRBS/SessionHandlerDb.php(11): MRBS\error_handler() #1 /var/www/web107/htdocs/booker2/web/lib/autoload.inc(13): require('...') #2 /var/www/web107/htdocs/booker2/web/init.inc(66): {closure}() #3 /var/www/web107/htdocs/booker2/web/init.inc(122): MRBS\init_sessions() #4 /var/www/web107/htdocs/booker2/web/defaultincludes.inc(30): require_once('...') #5 /var/www/web107/htdocs/booker2/web/week.php(6): require('...') #6 {main} in /var/www/web107/htdocs/booker2/web/lib/MRBS/SessionHandlerDb.php on line 11