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
Also, if you do create a blog or article ection or whatever be sure to be in that blog when you click the RSS button (to get the feed link) so you get the right RSS.
