I bought this months ago. Today I try to search and it comes back with a message " You have reached the Discoveries quota (3000) for your Account, please upgrade your Subscription to get more." (despite my profile showing AppSumo Tier 3)

It used to work, but not anymore. Also, there is no "help" or "contact" on the menu.

Update:
I've managed to contact the support, and now it's fixed 👍