tiger oscar has hole in lower part of mouth

[jaredj332]

I recently got a tiger oscar from the local pet store. it's in a 75 gallon tank with a assorted chiclid and 3 pictus catfish.I have had it only for a day now and I noticed that it's mouth looks odd. this morning while he was eating bloodworms I noticed that he squeezed a couple of the bloodworms through what appears to be a hole in lip. what could have caused this and what should I do? I attached a photo of where the worms came out of his mouth .