Error message

I am also getting this error. It takes down my entire WPMU network!

Same here. Our subsites are gone.

It may be your php version is not 5.4

https://www.ads-software.com/support/topic/plugin-broken-22?replies=2

https://www.ads-software.com/support/topic/plugin-could-not-be-activated-because-it-triggered-a-fatal-error-60?replies=20

Keep using the version before the update

Revert to the version before the update and it will fix the crashed network