Is this the foo plugin or the X theme defaults? Hostgator believes this is what is causing the 500 error while in the wordpress admin site trying to edit galleries.
[Sun Jan 21 17:54:57 2018] [error] [client 155.94.244.66] File does not exist: /home4/scientex/kcotb.org/wp-content/plugins/foogallery/extensions/default-templates/shared/img/admin, referer: https://kcotb.org/wp-admin/post.php?post=1056&action=edit
[Sun Jan 21 17:54:57 2018] [error] [client 155.94.244.66] File does not exist: /home4/scientex/kcotb.org/favicon.ico
[Sun Jan 21 17:54:58 2018] [error] [client 155.94.244.66] File does not exist: /home4/scientex/kcotb.org/favicon.ico
[Sun Jan 21 17:55:22 2018] [error] [client 216.244.66.233] PHP Warning: PHP Startup: Unable to load dynamic library ‘/opt/php56/lib/php/extensions/no-debug-non-zts-20131226/mcrypt.so’ - /opt/php56/lib/php/extensions/no-debug-non-zts-20131226/mcrypt.so: cannot open shared object file: No such file or directory in Unknown on line 0