Hi Bob
There is a problem with the Bloomsky pressure where all stations seem to be reporting some sort of sea level pressure with no offset. Bloomsky is aware and hopefully it will be fixed in a future update to the app.
When you say it was working then stopped, do you mean no rise of fall...?
One thing Bloomsky support suggested when a UV sensor appeared to hang up was to power the device on/off. You may want to try that before calling them.