i always have goop around.

My plus suffered the same issues on the bottom near the feets.

Thin layer of Goop was smeared all around the cracked area on the inside, next is let the goop set up.

Goop has this great quality, as it dries it not only bonds, it also creates kind of a slight permanent stretching/tension.

I have some items that I used goop with 15 years ago and goop is still bonding nicely.