SIRAK

Thank you Tara. I resolved it a little bit different, but it make sense what you´re suggesting.

I did this:

Reset your plugins folder via FTP or the file manager provided in your host’s control panel.

Via FTP or your host’s file manager, navigate to the wp-contents folder (directory)
Via FTP or your host’s file manager, rename the folder “plugins” to “plugins.hold”
Login to your WordPress administration menus (/wp-admin)
Via FTP or your host’s file manager, rename “plugins.hold” back to “plugins”

based on this:
http://codex.wordpress.org/FAQ_Troubleshooting#How_to_deactivate_all_plugins_when_not_able_to_access_the_administrative_menus.3F

Thanks