Ditto above. Should be able to restore with minimal costs. With regard to the floor repair, keep pulling the fabric away from the tubes to see if the glue is weak. You don't want to repair the area in the picture only, to find later that when you're out on the water and you step on another weak area that the floor gives way again in another area. So the first thing we do if check the entire floor and try and force any weak areas. If the bond is strong the fabric will not pull away and if weak the fabric will pull away quite easily. Better to do the job right the first time around to ensure many happy hours of boating later. :-)
Have a look at the guide I made for Zodiac floor repairs to give you an idea of what's involved.
Floor Repair | Inflatable Boat Repairs