This error occurs due to the fact that CodeCanyon only sells licenses that are available for one domain only. If you’re trying to install the plugin on multiple domains you will get the following error on the second domain:

“It seems that this purchase code is tied to another host. Please buy a new license in order to use this plugin on another sites.”

or

It seems that this purchase code is tied to another host and/or IP address. A purchase code can only be linked to one domain at a time.

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