My powerbot got its software stuck so it wont start cleaning

my samsung powerbot r9250 was shut off for about 3 months and was placed in the garage while we replaced the carpet once we where done we set it back near its dock then when we turned it on It does the count down and then shuts off then gets stuck on a number then we switched it off waited 30 seconds and switched it back on and the thing counted down to 1 and got stuck on 1111 and stayed like that what could I do to fix it