Stoeger m3000

[Awm]

I have a stoeger m3000 about 3 years old. It's been a good gun, but it's been used. Dropped, been wet and anything else that happens in the duck swamp. Anyways it's shot flawlessly until this year. Now I shoot the first round and the empty shell casing doesn't eject all the way. It's out of the chamber but still in the ejection port. Any ideas on what I can do?