I followed all of your instructions and upon trying to start the server in Debian, it crashes saying:
Missing method .ctor in assembly bla/bla/CitizenMP.Server.exe, type system.Runtime.CompilerServices.ExtensionAttribute
Can’t find custom attr constructor image: bla/bla/CitizenMP.server.exe mtoken: 0x0a000001
Any help is appreciated, thanks in advance!