When I try to create a new order i get a pop up that says "Send Failed". I can click OK but something are not right. I cannot call the products, I try to write the name of one of my products but nothing happens.

What is wrong?

Hello. This is JavaScript error. If you are using Google Chrome, can you press F12 for debug console, click on Console tab and copy here red message you are seeing? If you are using Joomla! 1.5, this error can be fixed by turning on Mootools Upgrade plugin. Alternatively, you can send us admin credentials to your site and we can fix the problem on place.

Thank you for answer. I have made printscreen using Chrome:

Hello. That is probably some other Javascript framework is loaded on page. Typically, it is because some plugins adds for example jQuery to page header without putting it to "no conflict" mode. Do you use some of these plugins (for example jQuery Easy)? Can these plugins be disabled for admin interface? We will need access to your site to investigate the problem.

I just found it! It was a plugin that adds functionality to ease add colors to the products in Virtuemart.
Is there a way around if I still need to use this plugin?