Is there a way that the changes you have made could cause problem with theme update ?
or just there are some other technical issues on betheme servers ?
@Phil Could you tell me what files were modified to resolve my issue?
I am asking, because I am unable to update the theme now.
This message means that your license key is used on more than one domain. Please use the license manager to handle your license keys: http://forum.muffingroup.com/betheme/discussion/36219/cannot-register-deregister-your-license-key-use-this-tool#latest.
If you see (on our license manager) that your license key is registered on a single domain, then please disable all of the plugins and deregister that license key (through the BeTheme -> Dashboard).
After that, get into the license manager once more. If the license key is still claimed - deregister it. If it’s not, register it again on your domain (through the BeTheme -> Dashboard) and try to update your theme a couple of times (usually, it passes after 2-3 attempts) - remember, all of the plugins have to be disabled.
theme was registered on single domain, but as you saind, i've deregistered it and registered it once more and then it went throught.