straightup
You can't do anything until your have requested and received a Statement of Reasons from the Judge in charge of your hearing, see
Tribunals – Requesting a Statement of Reasons Once you have this then you can see whether an Error of Law has been made in the Decision.
You might want to consider making a new claim for PIP, there is no waiting period and an appeal to the UTT could easily take a year for a new hearing to be convened, which is the most likely outcome from the UTT.
Gordon