Urgent: Assistance Needed to Resolve Website Error (HTTP 500)

Dear Team,
While authors were trying to register on our website, they encountered an error, as shown in the attached screenshot. This issue is preventing users from accessing the registration page.
Could anyone please help me identify and resolve this error at the earliest? Your prompt assistance would be greatly appreciated.

Hello @aruledison
Have you already checked your webserver log error to review the message is being output by your server?

Best,
Israel