RAINLOOP admin authentication problem

I cannot access the RAINLOOP admin panel.
I enter the credentials and I get “Authentication Failed” (I checked the RAINLOOP password from the terminal and it is the correct one).
When I log in to the RAINLOOP mailbox, everything works correctly.

Where did you check the rainloop admin password?

From PuTTY with comand " vim /usr/local/CyberCP/public/rainloop.php " and the password is correct and is the same as the one I had.

Can you again execute this file via php just to make sure that password is set to this.

I do not know how to do it. Can you help me ?

Thank you

I solved.
I forgot that I had changed the default password to a custom one. However, with the command I indicated, the system shows me the random password it generates during installation and not my custom one.

How can I resolve this message: “RainLoop data folder is accessible. Please configure your web server to hide the data folder from external access. Read more here: Documentation / Installation / RainLoop Webmail”?

This is false positive, data folder is not accessible.