can't boot into recovery anymore
I've found that if I run into problems with the custom recovery, I can get rid of it altogether by re-flashing the stock firmware, and then I can install the custom recovery again. You have a different device, but that's what works on a Samsung Galaxy S4, so it might work for you. Of course, there's always the possibility that if you try installing CWM again you'll run into the same problems, but at least that should let you start again from square one, as if you had never flashed a custom recovery in the first place.