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_67970848c9392' in delete request
AFAIK that worm, more than target PHP, it targets phpbb, exploiting a php vulnerability, so that particular worm should not be a problem for TikiWiki, but, anyway, you should upgrade your php to prevent some manual exploit.
