Warning: set_time_limit(): Cannot set max execution time limit due to system policy in /customers/5/5/9/site.com/httpd.www/wp-content/themes/……
Cause: hosting restriction on shared servers.
Help: Hosting must provide the solution based on this url instructions http://php.net/manual/en/function.set-time-limit.php
If hosting cannot raise that limit, one option is to change hosting.
In the theme – you can try to comment line 7 in user-dashboard-add.php and test submission.