oik-nivo-slider version 1.5 has been released to WordPress. This fixes an unrecoverable fatal error that occurs on the WordPress admin pages if oik-nivo-slider is activated but oik is not.
Apologies to those who suffered the following fatal error using oik-nivo-slider version 1.4
Fatal error: Call to undefined function bw_trace2() in \wp-content\plugins\oik-nivo-slider\admin\oik-activation.php on line 103
This problem is particularly nasty since it breaks the whole admin interface.
The only way to recover is make changes using ftp or cpanel.
Two options for recovery are:
Afterwards upgrade oik to version 1.15 then oik-nivo-slider to v 1.5.