I am still getting the message Server Error(500) when I try to log in to my website

Do you see any errors in your service's deploy logs?

no. The last deployment was 3 months ago and the status is active

Try redeploying your service, it might resolve the issue. If it doesn't, check the deploy logs for any errors.

It redeploys successfully then crashes about a minute later. I get this error message: django.db.utils.OperationalError: connection to server at "mainline.proxy.rlwy.net" (66.33.22.234), port 19358 failed: server closed the connection unexpectedly

This probably means the server terminated abnormally

before or while processing the request.

You are using the public URL to connect to your database from your django app. You should use the internal URL instead. Not only it's most likely to resolve the issue, but you decrease latency, and you won't be billed for egress charges.

I redeployed the database and it worked. Thanks.