Your spa has a water leak at the fitting tubes.
The leak is from one or more fittings.
Check which fitting tube is leaking.
Replace the defective fitting(s), by following this procedure:
In case your product is out of warranty (more than 2 years), complete the form (available here).
If your product is still under warranty (less than 2 years), complete the form (available here) with your purchase invoice and a photo of the issue attached.