While I think you are trying to do the right thing, you should stop betting at the site.  "Mateo" had a winning streak and many think it is you stealing from the investors to cover the expenses you'll have making the gamblers whole.  Even I (along with dooglus) thought it might be the fired employee.

You are under tremendous stress and getting attacked from all sides.  Best thing to do is suspend betting until you can check over the code and make sure it's all good.  Figure out how much you owe the gamblers who were effected.  Continue to allow investors who want to to withdraw their funds.

DO keep posting updates here.  This more than anything gives you some credibility.  You may want to turn chat back on, even if you are not active in it as you have a lot of work to do checking all the logs.

I agree with you, you are not acting like a scammer, but many people are understandably upset and happy to believe the worst about you and your site.  

I do wish you the best in getting this sorted out.