I'm working on a cross stitch for the craft swap, and today I found a hole in the aida that wasn't there before. It was in an already stitched area so the stitches there have come loose, enabling me to see the hole clearly. Basically it looks like the weaved threads have snapped

Does anyone know if it's possible to make some kind of repair to aida? I had thought of attempting to use ordinary DMC floss to make a new weave, or maybe trying to use a little patch and stitching it in somehow but I don't know if these things would work. It's almost finished and the end of the swap is close so I don't have time to restart it

Any advice would be muchly appreciated!!