Help on repairing a soft top

I have an 8ft Cabo that I noticed when paddling out I feel it bending and flopping a bit under me. Now looking at it there are creases widthwise on the bottom of the board (see attached image). On the opposite side there is a small tear in the soft top going into the foam.
Any advice on fixing the board? I called one shop and they cant fix it. Then I called another shop and the guy said he hot glues it. If that is the best I can do how will the integrity of the board hold up for future use. What do you think is a fair price for a shop to hot glue the board?
Any advice on fixing the board? I called one shop and they cant fix it. Then I called another shop and the guy said he hot glues it. If that is the best I can do how will the integrity of the board hold up for future use. What do you think is a fair price for a shop to hot glue the board?