[3ventic]

You're using a variable (array maybe) that's empty for a function that then tries to use it assuming it's not empty, which then crashes the server. It might be a mismatch with SA-MP and plugin versions, outdated script or a straight-up scripting flaw.

SA-MP and plugin developers will be able to tell you more precisely using those codes but you should check the above possibilities to your best ability before bothering them.