When attempting to fire this weapon, Instead of launching the grenade projectile, a red ERROR model is spawned above the playermodel. This Error explodes a few seconds after spawning in.
This is accompanied by this error message in the console

"Model missing: models/weapons/tfa_ins2/upgrades/a_projectile_m203.mdl"

Tried reinstalling INS2 shared parts several times, but this did not work. Any other suggestions on a fix? The addon was working perfectly fine earlier...