Foren / Cotonti / Extensions / Support / Page siblings errors

*snif*

I deserve this: http://massmultiverse.files.wordpress.com/2011/05/facepalm_implied1.jpg

Added 9 minutes later:

Ha, not completely..

Now I remember (it was very early this morning when the error occured..) I tried to install it, but it didn't install (although dl pages says plugin is meant for genoa and siena), just returned to the plugin detail page.

(When (similar pages) folder is removed I do not see anything concerning similar pages. when I put the similar pages folder back, all I can do is install.)

tried the page siblings plugin directly after that. I removed that one coz it displayed the full path to the pages.
While the page siblings plugin was running I didn't see these errors. they appeared when I removed it. Hence the confusion..

How do I get rid of these errors, when I cant install the similar pages plugin to begin with?