Fyi for the devs

Probably would have been more effective to acknowledge that you made a mistake.

I’ve been having a problem like this for months: When I try to collect loot while I have a notification about a piece of gear to upgrade, I’ll get a crash. At one point, it was also happening right after buying equipment.

The workaround it to visit that character that has the up-gradable gear and view it so that you no longer get the notification.