[Plugin: Custom Field Taxonomies] Plugin cause WP admin pages to go blank on WP 3.3.1 !!

Hi there

Please help, as this plugin is awesome and I need it, but doesn’t work on my website. It’s WP 3.3.1 and plugin 2.0.2.

when I activate plugin i get message:
“The plugin generated 2 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.”

Than i can’t use search and some page in admin just go blank. If I try to sue plugin it just go to blank page and nothing happen. Custom fields do not get converted into categories. Nothing. Then if I deactivate plugin, admin pages are fine and none showing blank pages. I can normally search through posts and similar.

Please help as I need urgently to convert some one custom filed into category. This is applied to about 20,000 posts, I hope this doesn’t cause the problem. I have website running on dedicated server that never goes above 15% load. Thanks

http://wordpress.org/extend/plugins/custom-field-taxonomies/