Error: The plugin generated 192 characters of unexpected output during activation.

This article is in regards to this error:

The plugin generated 192 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.

 

This occasionally happens on some servers. It isn’t actually an error, it is caused by this plugin connecting with Contact Form 7. You can safely ignore this error.