Dear @inforena,
We kindly recommend that you reach out to your hosting provider to investigate the root cause of the issue you are experiencing. They may be able to provide you with log files that contain details about specific actions or hooks that could be contributing to the problem.
Internal server errors (Error 500) are often caused by conflicts between plugins or themes. This typically occurs when certain plugins or functions within your WordPress theme are incompatible with each other or with the server environment, leading to errors during request processing.
Also, it might be possible that the PHP version installed on your server is causing such conflicts and you need to downgrade it to the previous one.
We hope this information helps you resolve the issue.
Best regards,
Jack Richardson
8Theme Team