Oil leak 1982 GTi

Earlier today i managed to scrape the bottom of my car as it's too low…. Whilst checking for any damage to the bumper I noticed the sump was covered in oil….. the oil is not drilling in the floor or making a mess it just seems the sump is coved in oil…… Is this something to be concerned about? Im thinking it maybe a sump gasket that needs changing if I'm correct?

Should i be concerned and if it is a sump gasket how would i change this? And how long can i wait before changing as I'm super busy for the next few months….. thanks!