Hello
This is the Virtuemart Paypal payment plugin. This is not from any of VMVendor extension.
Check if you have a javascript error reported in the browser console and post in the Virtuemart forum.
- 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.