500 Layout error while viewing the list

[emab]

I have created a form in with fabrik 3.1b on joomla 3.0.3 and published it on the front-end. I can easily submit data into the form and get the view from mysql. But when I try to view the list of that form I get the following error:

500 Layout default_row not found

'

What's wrong with this form?! Can someone help me?

 

[emab]

I solved it by setting the bootstrap template for admin