Something sounds...
..amiss.
First, if you're the original owner, you have a lifetime warranty on the pistol...contact Bersa sales for info as to where and how to get it repaired...
An AD would not have likely occured, even with a loaded chamber, as the trigger must be in the fully pulled position to unlock the firing pin.
If you go to the Bersa online forum, and post the same question, you'll get all the proper answers from folks who truly know the weapon. They also have a 'resident gunsmith' named Royce, who can put it back to like new condition for you very quickly.
Last....not to 'preach', but if you're using the slide release lever, to 'charge' the pistol, you're looking at further problems down the road...Use the 'slingshot' method (pull the slide to the rear, then release), and you're not putting excessive wear on the release lever.
In a combat situation, if you need that release lever for time expedience, then go for it.
Good Luck and Best Wishes,
FLc