Could someone help me with my printer, please?

I hate technical questions, but I’m desperate. I have an HP Deskjet 6940 printer. In the last few weeks, I can’t get into the service tab from the print preferences option. I can’t see my ink levels anymore. When I click on it, a little box comes up that says “this program can not perform this task” & that annoying piano chord plays. Everything else works good.

Something is obviously set wrong. Or what about drivers? HP does a check periodically on drivers & I keep them up to date. Does anyone have any ideas? I emailed HP lastnight & God knows if they’ll even respond.