Sorry i don't understand your problem
This plugin doesn't show a like button
(whereas this one does:
www.nordmograph.com/en/downloads/details...-for-virtuemart.html
)
It is a fecebook Comments plugin.
Anywaway posting a url to the page would help, as I also do not understand your warning message.
Do you use a 3rd party SEF component? or core Joomla SEF?
Also make sure you insert the correct facebook application id, not the fan page id.
- Need help? Post the URL of the related page (eventualy as confidential info), it will help solve your issue faster.
- An error, notice or warning? report the exact message including the line number
- If you get a white page , enable error reporting and / or check your server error logs.