oil loss

I desperately needs help with my 1989 Jetta 2 CLX. It spills oil and I end up having to top-up every morning. I checked the oil filter n realised that there is some oil residue there (might be the cause) and also realised that there is some oil just under the carburator (suspect tappet gasket)...

Was driving a couple of days ago and all of a sudden got a strange warning message "no engine oil pressure" followed by the engine shutting down. Come to find out, the last place I had my car parked had a great deal of oil spilled on it, and when I tried to replace the oil, it was just pouring...