You can try to paste ‘plugins.php’ after the login.
Then you should be forwarded to the plugin page.
Otherwise try the following: Delete the WP-Insert plugin from your FTP server and replace it with the new plugin version, which has been released today. As this new one can be used with WordPress 3.2.
Try to de-activate some of your plugins.
Just type http://www.yourdomain.com/wp-admin/plugins.php
And then de-activate step by step to identify which plugin is causing the error, that helped for me.
Hello!
I’m having the same strange problem.
The dashboard sidebar is misssing, any ideas what we could do?
I tried to downgrade to WordPress 3.1, but this was not possible.
Hopefully there will be a fix soon.
Thanks.