I upgraded to 2.3 and have got the following error message when trying to log in.
User Error] Couldn't run query: SELECT `SiteTree_ViewerGroups`.*, `Group`.*, `Group`.ID, if(`Group`.ClassName,`Group`.ClassName,'Group') AS RecordClassName FROM `Group` INNER JOIN `SiteTree_ViewerGroups` ON `SiteTree_ViewerGroups`.GroupID = `Group`.ID WHERE (`SiteTree_ViewerGroups`.SiteTreeID = 1) GROUP BY `Group`.ID Table 'web231-oxton.SiteTree_ViewerGroups' doesn't exist
When i do dev/build, it says the table is created ( Table SiteTree_ViewerGroups: created ) but there is no table in the DB.