TS error Code

Evening all for some reason my system is having problems tonight decoding anything from QO-100, it has been working fine and I can still receive commercial stations on Badr/Es'hail higher up the band. Even the beacon is not locking 100% and I get TS err 65536 any ideas as to what the error code is ?
many thanks John G7JTT
many thanks John G7JTT