After upgrade - all is broken

Hello!
our mobile site has been working just fine. Then we upgraded. Now it does not work. we get an error message" page contains the following errors:
error on line 117 at column 26: error parsing attribute name"
then there is a link to " reparse document as HTML" 
Any hints would be greatly appreciated. thank you - joomla friends.

What is url of that page?

you can look at any pages on the site www.nbn.org.il
Thank you for your quick response

Looks like Android gets full page instead of mobile version. Full page declared as "XHTML 1.0 Transitional", but it's not XML-compatible (e.g. <script> tag content isn't embedded in CDATA, etc.).
What template did you set in Smartphone/XHTML tab of MJ settings page?

I've tried PDA, WAP, our default joomla template, and have left it blank too. 
Thanks again!

Hello again.
I have been tinkering with all the settings. - no luck. I have a thought/request. Can you please provide me with the link to the previous version to download. Id like to try re- installing it - and see if that helps. Thanks:)