Server error

I’m having the exact same issue as here:

http://wordpress.org/support/topic/plugin-multisite-plugin-manager-breaks-access-to-admin-white-screen-of-death

The only difference in mine is that the line number is different – instead of line 1357 mine is line 1451. I tried to replicate the solution that worked for blowbackk (http://wordpress.org/support/topic/plugin-digg-digg-new-plugin-doesnt-work?replies=5) but I can’t figure out exactly what he did with “true”. I’m assuming he meant that he changed “false” to “true” in a couple of the lines, but when I tried it I just end up chasing the error through the file – I end up with a different line number, but the same error.

I’d really like to get this to work since it’s ideal for what I need. Can anyone help?

http://wordpress.org/extend/plugins/multisite-plugin-manager/