30 days error, can't play single player PTR

can’t play PTR single player because of this error
could play till yesterday
was playing PTR online till last day it was on
other players report same problem on forum
other players report that they can still play PTR single player
“30 days error” thing do not behave properly
I would like to continue testing, any fix ?
could windows update defaulting some windows things do that ? there was one like that recently
or this broke when launched live version
in log file from game folder error is :
[D2BackendServices/4] [<>:0]: D2BackendServices: error: 3 Error Source: 3 Error Value: 3 String: This version of the game is out of date. Please update to continue playing.