Yeah looks like someone got a bit too vigorous with the handle and snapped it in half. It's been botched together with angle brackets.
If it was me, I'd junk that handle and replace the entire thing, it will only cause continual problems over and over again.
If you want to mess around with it though, you can possibly JB-Weld it back together and then use a smaller bracket and bolt system, or preferably a tubular style fitting and remember to be gentle with it.