I have bought a hostinger minecraft server to play it with mods. In order to do so, I have to change server type. After that, change the forge version to 1.20.1 (My mod's version) and press "scan for new JARs". When finnished scanning, it only finds version 51.0.17, wich is valid for 1.21, but not for 1.20.1. What can i do to solve the problem?

I just want to play with mods, please help. I have asked ias and have talked with custommer attention service, but none of them can help me.

The exact error that apears when I try to start the server is this one: The Minecraft server stopped within 5 seconds of starting, this is not a fault with AMP - you should check your Minecraft servers log files to find out why it is unable to start.