I am confused…see attached.
Maybe it is your XP?
Moved to Bugs. :)
IF is roundung up your standing from 99._% to 100%.
Do some landings in playground and you’re good to go
or maybe even one
As @Boeing707 said, your standing is rounded. Your current standing lies somewhere between 99.50% and 99.99%. Do some more flying or touch and goes on the playground server and you will have access to the advanced server.