Proxmox VE VPS For WHMCS v3.10.1 not nulled by alfonsobp

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I have error:
Your module license is invalid.
 
thanks to dear member @anne51 updated Proxmox VE VPS For WHMCS with a new update entry:

3.5.1 not nulled version


Read the rest of this update entry...
 
3.5.0 version Connection not possible. Please report your server IP to support@modulesgarden.com error message.
What is the solution?
 
make sure your whmcs run cron daily,it will auto to update license and localkey
a few days after installation,i think whmcs daily cron was not run normal ,localkey can't to update It is the cause of the problem.