Defender activation causing white screen of doom

Yesterday I noticed Defender was not network activated and so I clicked activate and the screen went white. I've had this issue recently before and de-activated all plugins via ftp and one by one activated them. I hadn't realized I had not re-activated defender. I'm hoping to market my site starting on Sunday so would be really grateful for any advice and help please.
I'm on WP 4.7
Theme: Woo theme Memorable

all the best


  • jon

    Thanks for your response. I've been having a lot of issues over the last week and eventually realised that the memory was being exhausted and so changed PHP to 7 at the server end and now things seem to be working fine. So I now realise it was not defender that was causing the problem but just coincidence that it was happening when I tried to reinstall and activate the plug-in. The upside of doing all this is that I've cleared out my plug-ins and removed any non-updated I guess this issue should be marked as resolved.

    Thanks again for your time


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