Ghosted on expert server

Hello all, yesterday I was operating southwest 4179 from KFLL-KMCO when I received a ghosting from atc saying I failed to listen to atc instructions and I was told not to follow my fpl. However at the time I wasn’t on any frequency or doing anything unusual. Please help.
Ghosted by :IFATC Flying High
Call sign: Southwest 4179
Display name:Captain Todman
A/c: Boeing 737-8

I will notify @anon66442947 and he will PM you shortly.