Ok, now I got the same issue like you got a while ago!

I'm able to zap for example Alby and LNTipBot users without any issue!

Atm I'm not able to zap WoS users anymore!
No reaction anymore.

I really don't understand what's going on 🤔😓🤷!?

Is everything for you working normal now? What did you do regarding to your issue?