Looks like you are using open.mp RC2.
Get the latest open.mp version from https://github.com/openmultiplayer/open.mp/releases
Also you should use Pawn compiler 3.10.10
It's included in the latest release. (qawno/pawncc)
Get the latest open.mp version from https://github.com/openmultiplayer/open.mp/releases
Also you should use Pawn compiler 3.10.10
It's included in the latest release. (qawno/pawncc)