Oil pressure to stop low engine immediately. Error P0011

Moin had an event enough Sunday. I only helped a buddy in a move and on the way back my wife calls me and says she can just be towed from ADAC to the next stop for 350€ because her Opel would be loud and the error message oil pressure came off low immediately engine. So we went to the rest area and towed her 60 km home. At home I immediately put the OBD on it. And it came the error message P0011 Timing camshaft. So briefly read and it seems What only worries me is that it also makes extremely loud noises. Can something be broken now. What makes it worse? She had immediately turned out the vehicle. Did you already have problems or experiences with it?