I can confirm that the premium version is not working
I believe the server might deactivate all premium version
I dunno but premium version is not working after make a quick saving,
Free version version: 0.8.6.8
not sure about wamp or xamp but.. in server, the plugin change back to free version after uploading the premium file or before uploading a premium file
the premium features only appear 1 times after we make an adjustment.. the plugin turn back from premium to free version after save which leads to all premium features disable