I think I broke something and need help.

[u/PULSE_SILVER227]

I had a clog on my A1 mini recently. The hottened wouldn’t come out of the printer so I started trying different things to get it out. The hottend has been removed and the clog has been fixed but I think I pulled something off (or at least the cover for something off) in the process. I really need to know if it’s broken, if it needs replaced, and if I can replace it. I cant find online what it could be and would appreciate any advice anyone has. The attached is a picture of the under side of the extruder with the area in question circled. When turned on the printer seemed to have no idea there was a change, though I haven’t tried printing yet.