[ThaCrypte]

Try this:
Update your streamer, i recommend: https://sampforum.blast.hk/showthread.php?tid=102865
Look for: #include <a_samp> , and add #include <streamer> above it.
Go to server.cfg and look for: Plugins, and make sure streamer is on that line.

Windows:
plugins streamer
Linux:
plugins streamer.so

IF that didn't work, save your gamemode, and manually open pawno.exe and open the gamemode by loading it, then try to recompile.