1. Deactivate all of your plugins.
2. Set "Origin" as your default theme.
3. Update Core.
4. Check your site. Check mobile version of your site. Check "Mobile" tab in your admin panel. If you don't see any issues proceed to #5
5. Activate your plugins one by one starting with default Oxwall plugins. Example: activate Blogs>>update blogs plugin>>check your site, mobile version>> if everything is ok, activate/update your next plugin.
6. If all plugins were activated/updated successfully try switching back to your own theme.
Check your site, check your mobile version.
Read:
http://www.oxwall.org/forum/topic/15494?page=1#post-78134