The search index could not be updated. The site is misconfigured. Contact an administrator. SQLSTATE[42000]: Syntax error or access violation: 1064 unknown table 'tiki_main_67c278321323b' in delete request
Not sure why Tiki defaults to the database for image storage. I set all my sites to use the directory so there are no limits on file size. Maybe that also takes care of your problem.
