Washed my blanket and it’s now unraveling!

HELP PLEASE!
I recently finished a lovely blanket with Bernat Mega Bulky yarn. I threw it in the wash on super delicate and cold water…when I laid it flat to dry I noticed the whole bottom corner has unraveled!! This is supposed to be a Christmas gift, is there any way to repair this??

Welcome to the forum!
That is unusual. The unraveled part looks long enough that you can weave the ends in. Cut the loop and weave in those ends. Follow the direction of nearby yarn strans.
If necessary, you might split the plies before weaving in so that the woven area won’t be too thick.
The knitting and blanket look lovely.