Hey Vicki,
Thank you for reaching out to us!
I’m very sorry about this issue you are experiencing, let me help you to solve it!
The 500 Internal Server Error is a very general HTTP status code that means something has gone wrong on your website’s server, but the server could not be more specific on what the exact problem is. This status code is usually associated with a PHP Fatal Error, so to help us to identify the cause of this issue, can you please check your PHP error log? If you don’t have access to this log, you can ask your hosting provider to share this info with you.
You can also check this by yourself by temporarily enabling WP_DEBUG and WP_DEBUG_LOG via FTP and share with us any messages you see while submitting new Community Events. All WP_DEBUG messages will be stored in a debug.log file in /wp-content/debug.log.
If you have any other questions in the meantime, please let me know and I’ll be happy to assist!
Best Regards,
Patricia