[MCL-6866] Game won't start

I try to start the game but as soon as i press the play button, a message pops up stating "Game Crash
An unexpected issue occurred and the game has crashed. We're sorry for the inconvenience."
The game output shows me the following

23:13:57	launcher	Preparing to launch minecraft client for 1.11.2
23:13:59	launcher	Checking installations.
23:13:59	launcher	Minecraft client 1.11.2 is ready to start.
23:13:59	launcher	Starting!
23:13:59	launcher	Using default game log configuration client-1.7.xml (outputs XML)
23:14:00	launcher	Process closed with exit code 1
23:14:00	launcher	Error occurred during initialization of VM
agent library failed to init: instrument
Error opening zip file or JAR manifest missing : libraries\io\netty\NettyAgent-1.0.jar

Before it wouldn't even show me the logs...

Is there a fix for that?, if so, i would very much appreciate any help.

Thank you very much for your time and help.