I'm getting the following error that says the plugin couldn't be activated:
Fatal error: Cannot redeclare class Proper_Network_Activation in
on line 27
Strange thing is that the plugin activated once before and didn't give an error, but a similar error was given when network activating another plugin while this plugin was active; a class from that plugin couldn't be redeclared.
Also, after this error happens the Proper Network Plugin actually says that it's network activated, but I think it may not be active on all sites and the not activated error was from one of the networked sites, rather than the main site. Because when I activated another plugin (MapPress) while Proper Network Activation was active it only created the MapPress tables on 98 of the 130 sites on the network.