Dvd sticking

I have a 5 year old Deawoo dvd player and recently when playing back dvds after about 30 minutes playing the dvds tend to stick and sometimes I manage to get it to continue playing and sometimes not. I’m pretty sure its the dvd player as the discs work ok on another dvd player I have. Is it possible to clean the lens or is it a case of buying another player.
Thanks for any advise

Just buy a DVD lens cleaner.