Regularly (every time maybe?) I return to an already-open fishing game tab, I find there is a "Oops! Something went wrong" error in a popup on the page. I definitely am not clicking anything to cause it, just tabbing back to the window and finding it already open. Maybe is the activity timer (or the widget for them) trying to create a popup when a timer ends?
The only information I can find on the page (via content blockers) is that it's a Livewire Error opening in an iframe. I'm running FF145.0.2 (64-bit) on windows.