iPhoto empty trash help

Hello.

Not long ago, I ran into an iPhoto problem I am having trouble to fix. I was deleting some photos and then I emptied the iPhoto trash; but after the trash was empty, I noticed the counter said there are still over 300 photos in the trash. The problem is, they are nowhere to be seen in the trash. I tried emptying the trash multiple times, but the photos are still supposedly there.

Ever since I have been having this trash problem, I have a feeling that iPhoto is also slightly laggy. Anybody know what I can do to fix this?

Edit: I added a screenshot.