Hello to all

Im trying to perform a backup on my OpenProject instance. I have already created the backup token but when i try to execute the backup process, all I get is a Not Found message.

My system:
Core version OpenProject 12.0.4 
PostgreSQL version 13.5

Hello,

I have exactly the same problem on Ubuntu 18.04.

OpenProject is Up to Date.

Thanks

Regards

Error code : 

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>404 Not Found</title> </head><body> <h1>Not Found</h1> <p>The requested URL was not found on this server.</p> <hr> <address>Apache/2.4.29 (Ubuntu) Server at 10.9.2.6 Port 80</address> </body></html>