Is it one of these?https://www.airdock.com/
If so, I can understand because I owned one for over 15 years. Worked like a charm.
It takes some special glue and pre-treatment to learn how to repair small and particularly large holes. Contact the builder. They have kits that they can send you. Tell them what size is the hole and they will decide how much material you will need. Kits also include the glue and detailed instructions, which you must follow.
Unlike some other types of lifts require more air pressure, if I remember correctly, the Air Dock runs on about 3 PSI. But, you must glue things right.
I have no idea what animal would have bothered to get into such a place just to chew it.