Hi,
I found the information below, taken from the WP support handbook, which might help solve your issue. It’s the first way forward to solving your 500 error issue. If the problem persists, there’s more guidance in the handbook and I’ve included a link, or come back to the forum.
https://make.wordpress.org/support/handbook/giving-good-support/pre-defined-replies/
Error 500: Internal Server Error
Internal server errors (error 500) are often caused by plugin or theme function conflicts, so if you have access to your admin panel, try deactivating all plugins. If you don’t have access to your admin panel, try manually resetting your plugins (no Dashboard access required). If that resolves the issue, reactivate each one individually until you find the cause.
