Seafile issue after install

Hello

I’m sorry to annoying you but after few searches I didn’t find the solution.

I’ve installed one server with Seafile by following this https://manual.seafile.com/deploy/using_mysql.html
The server is working fine

I’ve installed a second one by following the same procedure and each time I try to connect I get a blank page.
It’s hapened when I try from Localhost or outside
Could you help?

Thank you in advance
Regards

What do you mean by “a second one”? On the same machine?

Did you deploy with nginx/apache?
Can you show us the log files of the server?

Hello

A second one is a second server. I’ve know two servers.
I did not use Nginx/Apache for both of them
Which log is relevant for debugging?
Thanks