Maybe you bought the wrong version of SmartScreen?
The one that works for the iPad is [specifically] SmartScreen for iPad iOS. And that one only (AFAIK). In addtiion, any widgets you buy for it must also include the ...for iPad iOS wording. Else, they won't work correctly or at all.
Well, except for Yet Another Clock - that worked fine on my iPad. But, for all the others - best to stick with the for iPad iOS ones.
So, I'd suggest, if you have the wrong version, that you uninstall it. That'll probably fix your situation.
Then, if you got the wrong one, maybe you can talk to the developer about getting your money back? Then, you won't be out the cash...
Marilyn