Did mine last week. Mine is PVC - 99% sure your's (the older version) is too. They are very light and cut, rip, abrade very easily.
You need PVC two part glue and some MEK cleaner from these guys:
Glues and solvents for Ribs and inflatabe boats
They have good instructions on the site - follow them. If you don't, it won't be a pukka repair.