You mean due to 1.8upgrade? Then your upgrade was not done properly.
Did you deactivate your 1.6 plugins or uninstalled them? Most of the time problem happened because of plugins, i did the same. I did not deactivate my plugins and upgraded to 1.8 and noticed my website started showing problems, so i had to remove plugins manually, it was time consuming.
Did you deactivate your 1.6 plugins or uninstalled them? Most of the time problem happened because of plugins, i did the same. I did not deactivate my plugins and upgraded to 1.8 and noticed my website started showing problems, so i had to remove plugins manually, it was time consuming.