Problems with the website

I started having problems with the website yesterday. I think these have all been resolved, and were apparently caused by a 3rd party app I had installed months ago suddenly deciding to act up. I know the two issues people were having yesterday were:

*Product detail pages were not loading on the first try, but would load on refreshing.

*I know two people had issues with checking out and paying.

If anyone is still having issues please let me know and I will do what I can.