Lost admin after 3.9 update.

Here we go again… Yet another problem after updating. It seems to becoming a regular occurrence:( (for me and my windows server) I feel nervous every with every wp update. Once again my fears are justified. I wish I didn’t like WP so much, or I would have thrown in the towel by now..

I have just updated to 3.9 and now I can’t access any admin.

Everything looks normal until I click something, then I get this error message :-

WordPress database error Duplicate key name ‘slug’ for query ALTER TABLE wp_wppa_index ADD KEY slug (slug(20)) made by require_once(‘H:\hshome\photopostman\historyhunters.co.uk\wp-admin\admin.php’), require_once(‘H:\hshome\photopostman\historyhunters.co.uk\wp-load.php’), require_once(‘H:\hshome\photopostman\historyhunters.co.uk\wp-config.php’), require_once(‘H:\hshome\photopostman\historyhunters.co.uk\wp-settings.php’), do_action(‘init’), call_user_func_array, wppa_setup, dbDelta.

I noticed that it ‘hung’ while installing and I didn’t get a ‘successfully installed’ message. I did wait a good time but had to eventually close the browser. Maybe I was a bit too hasty, and it was just taking a long time?

If anyone can translate the above Klingon hieroglyphics for me, I would be eternally grateful.

Btw.. My site still works fine… Just a prob with admin.

Cheers..