PHP fatal errors

Last week I noticed that all the pages at https://www.tranect.co.uk were failing to load properly.

After checking the waterfall I contacted my server host for assistance as I thought it might be an SSL issue, but they checked and found a Cron issue, which I resolved but the page load issue remained.

After a deeper dive into the server traffic my hosting company sent me the following message:

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On checking the logs, I could see PHP fatal errors. Typically this problem occurs when a PHP code in wordpress takes a long time to run and reaches the maximum time limit set

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2020-07-21 03:24:57.494929 [NOTICE] [38056] [170.247.152.132:46958] [STDERR] PHP Fatal error: Maximum execution time of 600 seconds exceeded in /home/copperbr/tranect.co.uk/wp-content/plugins/gallery-custom-links/mgcl_core.php on line 189
2020-07-21 03:25:32.780941 [NOTICE] [38056] [36.94.12.210:48106] [STDERR] PHP Fatal error: Maximum execution time of 600 seconds exceeded in /home/copperbr/tranect.co.uk/wp-content/plugins/gallery-custom-links/mgcl_core.php on line 189
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I have now increased the max execution time. Could you please check the plugin gallery-custom-links which is causing the issue with the help of a developer.
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After deactivating Gallery Custom Links my web page loading issue was resolved and my website is working fine now.

The page I need help with: [log in to see the link]