Hi,
That page is not public so it can not be shared on Facebook
You must set your vendor profiles public.
I just tested the like feature on vmvendor.nordmograph.com and it worked perfectly.
- 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.