I have the same error, see the topic at https://wordpress.org/support/topic/fatal-error-version-5-0-22-the-following-conflict-occurs/
The new version 5.0.22 seems to have some kind of conflict depending on the WP configuration. The previous version 5.0.21 does not show this error.
I temporarily solved it by uninstalling version 5.0.22 and reinstalling version 5.0.21 until the plugin developer fixes this issue 🙂
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This reply was modified 2 years, 5 months ago by
Stefi007.
Plugin Contributor
Rimas
(@erku)
This was my mistake and I’m sorry for letting it slip. I’ve fixed it in Andrea’s private repo, and I hope he’ll release the fix soon.
Hi @centoasa @stefi007, thanks for the topic and I confirm that I just released version 5.0.23 which fixes the fatal error, with @erku it has been fixed. I hope you enjoyed the support
Thank you for your quick response and fixing the 5.0.22 update bug that occurred. It didn’t pose any security risk, so I don’t think anyone had any particular problems.
We are very grateful to your team for the excellent Headers Security Advanced & HSTS WP plugin. It’s really a very smart solution and very easy to use :). Thank you very much and good luck to your team for the future!
The patched version 5.0.23 works great!
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This reply was modified 2 years, 5 months ago by
Stefi007.