Get the car on a GT1 and read the codes. There is something stored if a light it lit.
You are missing a ton of info to even internet diagnose.
What model e36?
how many miles?
Was it making any noise?
Last time the fluid was changed? color/condition of fluid and type.
any recent work? Clutch, shifter, bushings?
Run it hard...miss a gear?
things to look at.... slave cylinder, bleed clutch fluid, Check clutch for disengagement. then on to the shifter and the mechanisms, then trans after. New BMW trans can cost you (pending model) 5000.00, but there are a ton of used options (eBay) for ~500 bucks.
Good luck
Edit: if that pic is your car, it looks to have a supercharger or turbo... you might want to also state the rest of the mods.
