Hello,
I am a legally registered WHMCS system, I came across something I can not update the license.
I purchased a new license to carry a license renewal that I had purchased a new site with WHMCS properly and legally.
And I bought a new license, then asked me username, password and license key and have entered all information
After clicking on the update button System wrote: "You do not have permission to make this change."
You never know what's the problem?