License Issue: A networking problem occurred while activating your license key: (Error code: 401)

[Networkbug]

Hello,

my 4sc enterprise existing key is expired, and my channel partner is not able to see the 3cx key in his portal, they issued a new one, but it is not getting activated. getting above error.

my 3cx is on V18 (Build 31)
3cx 4SC enterprise - Self hosted.

new key is also for 4sc enterprise

any help would be great.

thanks