The bad news …waking up at half past 6, on my day off, and seeing this message; therefore instantly activating my brain. The good news …the problem is fixed before breakfast. YOU ARE A LEGEND! You are a legend I had tried renaming my theme folder and even tried naming the plugin folder (which doesn’t work as too many things call the plugins) so I was at a loose-end and about to rebuild. However, I was confident that my custom functions file was clean, despite calls for the groups (as they were all contained in “if”s …So I began naming all of the plugins that controlled groups in buddypress the two in question were “Buddypress group control” & “buddypress groups extra” I now have groups re-enabled and also know how to safely disable it. THANK YOU!