Foam detached from stringer

I’m getting ready to glass board #2 and the foam isn’t glued to the stringer anymore and i couldn’t find anything in the archives. Maybe my searching ability isn’t up to par. Should i just put a little epoxy in there and can i do it right before i glass the bottom? Thank you for any input.

 

Erik

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Just noticed the glueing the string threat. Sorry about that. Thanks.