[Mediawiki-l] Help with error message, please

[Richard Karpinski]

[pear_error: message="Template function 
'tpl_0_7_0_0e4a84c354c32eecdeef1095264de07d' not found (template source 
: /home/groups/h/hu/humane/htdocs/wiki/templates/xhtml_slim.pt" code=0 
mode=return level=notice prefix="" info=""]

this happens when selecting a link or when clicking preview or save 
page. Sometimes backing up and repeating the click works but sometimes 
it fails in the same way  a dozen times or more.

Dick