fatal error on Multisite install

This is a conflict with older versions of PHP. This is a feature that was implemented in 5.4 https://php.net/manual/en/migration54.new-features.php.

I will modify this in the near future to be compatible down to 5.3 though, and release a patch for it.

Sorry for any inconvenience.

Thanks

The patch has been implemented. Please update via WordPress and let me know if your problem is resolved :).