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I’m using NinjaFirewall on about 90 sites. After Update to 4.6 I got Fatal Errors on a 5 sites with this message:
Fatal error: Cannot declare class NinjaFirewall_helpers, because the name is already in use in /xxx/xxx/xxx/aino.betapage.ch/wp-content/plugins/ninjafirewall/lib/class-helpers.php on line 14
Downgrade to 4.5.11 and everything works. There are no specific Plugins or Hosting-Provider on this sites. What is your recommendation to solve this?
Thanks
Gerd
The page I need help with: [log in to see the link]