Hi, I've got the same problem, my theme_default_status is set to 1. I have a few more options on the menu though (everything but the extentions options).
In System Setting my Theme is set to "heading_title" and its the only option in the drop down box, I was previously using a Big Shop Theme.
Any other Idea's? Thanks is advance for any help.
Hello, same issue here. After upgrading from 1.5.6 to 184.108.40.206 the message "Error: A theme has not been assigned to this store!" appears. In Backend under "System" / "Settings" in the corresponding Shop Entry under "Theme" we have the only option "heading_title". If the entry is saved withoud changes (therefore it will save the "heading_title" as Theme an error "Warning: Please check the form carefully for errors! " is thrown. Any ideas how i can put in the theme?
Hey I was able to fix this, the problem is that the default theme is not activated when you have performed an upgrade.
* First verify that your admin users group has all the permissions by clicking System > Users > Your user and then System > Users > User Groups.
* Second visit Extensions > Extensions, select Themes, then press the + button to active default theme
* Third visit System > Settings > Main Store > Select default theme and then save
* Fourth visit front-page to verify that problem is solved