[maryjane420]

So i downgraded my game to version 1.0 successfully, single player is fine, except SA:MP.

Now i when i join a server (ANY server), an error message comes up and says "Original disc cannot be found or authenticated"

How can i fix this?

[Revo]

Your disc cannot be read, either your No-CD crack is no longer working (makes sense due to downgrading) or if you bought the game, you don't have the disc inserted.

In either case, getting a new no-cd for 1.0 will do the trick.

Be aware of the many possible viruses unreliable sites can give you though.