threat-analysis-center detections and cases partially broken

Using firefox 115.10 ESR I notice today

going directly to

https://central.sophos.com/manage/threat-analysis-center/cases  (copy that in address bar)

works.

Then clicking on Detections, I get an error bottom right

The detections load after a while regardless the error.

but then If I click cases on the left side or top menu,

cases are no longer working and I'm redirected to the TAC dashboard again instead.