Chelsea do you think everybody speaks Polish?? Please do a proper bug report! That's a philosophy....
So the bug is :
Counter of pending games is bugged, this is probably due to the PO count of your clan, the site seems to be counting the PO games from your clan, and does not clean the counter after PO are off.
After clicking on "pending games[1]" you see the message: "Please try again. If you come back to this error screen, report the error to an administrator."