500 Internal Server Error on atenahub.app.br (Morty server)

[talesaz]

Hello HelioHost Support Team,

I am hosting my Flask application under the domain atenahub.app.br on the Morty server.

Since the server maintenance that occurred yesterday, I have been experiencing frequent "500 Internal Server Error" responses. I checked my access logs and noticed several automated malicious bot requests (directory fuzzing/scanning for .env files).

I am not entirely sure if these 500 errors are simply my application breaking due to these bot attack attempts, or if it is a side effect of the recent server maintenance/movement. Could you please verify the server status and help me investigate the root cause?

Additionally, to make my backend more robust and mitigate these brute-force/scanning attempts, I plan to implement a rate limiter. Could you please install the Flask-Limiter Python library on my server environment?

Thank you for your time and assistance!

[talesaz]

I have an additional request regarding my database on the Morty server.

I am trying to connect remotely to my MySQL database using HeidiSQL and my local Python environment for development purposes. However, I am consistently getting the following error:
Access denied for user 'talesaz_matrizhub00'@'2804:...' (using password: YES)

Here is what I have already checked and configured:

My credentials are 100% correct (I can access the database perfectly through phpMyAdmin in Plesk).

In Plesk > Databases > User Management, I have already set the Access Control to "Allow remote connections from any host".

Could you please verify if there is any server-side issue?

This database is related to matrizhub.heliohost.us

Thank you again for your time!