Thanks for your reply and feedback.

1. Please click the menu at the right upper corner of AccuRIG, log out your account and then login again.
Check if the issue's solved after logging into your account.

2. Please check that your system clock is set to the current date.

Set the system clock manually:
(1). Go to Start > Windows Settings.
(2). Select Time & Language.
(3). Select the Date & Time tab.
(4). Set the Time automatic: On.
(5). Set the Time zone automatic: On.

3. If the issue does still, please try to reinstall the latest AccuRIG and check if it's solved. 
https://actorcore.reallusion.com/auto-rig/accurig

Allen
Reallusion