I would like to install Mod, but I always get this error message. Have linuxgsm and CS: Source Server (Debian 10.4) up to date. What can I do?
$ ./cssserver mods-install
Counter-Strike: Source Installing mods
MetaMod - Plugins Framework - https://www.sourcemm.net
SourceMod - Admin Features (requires MetaMod) - http://www.sourcemod.net
Enter an addon/mod to install (or exit to abort):
Error! is not a valid addon/mod.