Fatal error after installing Wordfence

Hi @matt6303, thanks for getting in touch!

If you’re in Learning Mode already, and using another plugin’s features result in an error, there’s a chance a firewall rule isn’t causing a false-positive block. If you disable Learning Mode, try making the change again. Immediately afterwards, do you see a block and reason given in Live Traffic? You can do this by checking the red text after clicking the block itself, or eye icon in the corner.

If there’s no block or reason, it points to maybe a cause outside of your specific Wordfence settings too. Often this can be down to caching, so you could always reenable Learning Mode and clear any caches on your site (including any WordPress caching plugins) to hopefully allow the action through.

Thanks,
Peter.

Peter, thank you for the reply.

I am still having this issue, after trying a number of things.

I have tried all three options – Learning Mode, Enabled and Protecting, and Disabled – and I get the white screen when trying to open the Customizer in all three cases. Only if I deactivate Wordfence itself does the Customizer become available.

I don’t have any specific caching plugin running on the site.

The “live traffic” report did not show any entries related to my activity. I’m not necessarily being blocked, as a function of Wordfence, but rather I am encountering some sort of error.

I tried turning on Debugging in the wp-config file, but that didn’t give me anything specific to this issue either. Just a couple deprecation notices for an unrelated plugin, which I also get on other sites.

Any additional troubleshooting tips or strategies would be appreciated. For now, I’ll continue running Wordfence. Since this site just launched there shouldn’t be much need to get into the Customizer, and if there is I’ll just have to temporarily deactivate.