Wire has came out of block that connects into fusebox....?

Hi,

Basically the red/blk wire that operates the heater has someone been pulled out of the blue box connector that connects onto the fusebox.

I've tried soldering it back in, super glue etc….

Nothings working, the little blue box connector still has the bullet connector inside of it and it doesnt seem like it comes out?

Anyone had this happen to them before?

Winter is here basically and i need my heater haha

Cheers