It is hard to say as this error has occured in XML, so there is no addon name. Try to find out which of your addons uses ZO_ScrollList template.
I.e. try to find all addons which have text "ZO_ScrollList" in .xml or .lua files and disable them one by one. It should not be too much addons. Right now I have installed 85 addons and none of the uses this template.
|