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Hello @alanwpeasy,

Please, reset the plugin settings to the default values. The guide is here:
https://cleantalk.org/help/plugin-template

Then clear your website cache. Make sure that the website cache is 24 hours or less.

It will fix the issue. Did it help?

I reset the settings as per the instructions. The website uses LSCache, I did a “Purge All”. Then in an incognito window did a CTRL + F5.

I’m still seeing the same error.

I tested the form Contact Us, no issues found here.

I also tested the Search button on the homepage, I see a website request generated by each search enquiry, it may cause some filtration issues as the search queries may happen very often.

Change this option here:
? WordPress Admin Page → Settings → Anti-Spam by CleanTalk → Advanced settings →
→ set the option “Check email before POST request” to “Off” → Save Changes.

Could you tell me what plugin this Search form is built with?

Changing that setting made no difference.

Also, I get the same warning on the contact page. That page does not have the search form.

The filters / search are from the Houzes theme.

By the WordPress catalog rules, this Support Forum is for plugins only, not the service. We are not allowed to discuss any premium or non-plugin issues here.

Please, create a private ticket and copy-paste your question there to continue our conversation:
https://cleantalk.org/my/support/open

We have fixed this issue. The fixed version can be found here: https://github.com/CleanTalk/wordpress-antispam/releases/download/fix-version/cleantalk-spam-protect.zip

All the changes made will be included in the next stable release. So I’m going to mark this thread as “resolved”.
If you have any further questions, you can start a new thread or contact us via our private Ticket System:?https://cleantalk.org/my/support/open.