There is a solution though. You need to install a plugin that disables WordPress’ widgets and which will then allow K2’s sidebar widgets to continue to function properly. You can get the plugin here. Install the plugin and activate it once you have performed your upgrade to WordPress 2.2 and your blog should work properly after that.
Just remember that when you upgrade to WordPress 2.2 to follow the instructions in the readme file. What I did was delete everything except my wp-content and wp-config.php file and upload the new files.
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wordpress 2.2, wordpress, k2 theme, widgets, sidebar, plugin
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