Zade

Nice sleuthing! Well this is interesting; I just confirmed my FP license is Active (https://a.cl.ly/5zuELrmR) but something about NF being active is causing FP’s Cloud Optimizer to return an “Invalid license key” response:

Array
(
    [headers] => WpOrg\Requests\Utility\CaseInsensitiveDictionary Object
        (
            [data:protected] => Array
                (
                    [date] => Tue, 14 Apr 2026 20:28:55 GMT
                    [content-type] => text/html; charset=utf-8
                    [content-length] => 19
                    [cf-ray] => 9ec575a79c416d20-LAX
                    [cf-cache-status] => DYNAMIC
                    [cache-control] => public, max-age=2592000
                    [etag] => W/"13-3ktx/mMbgtvokNAWQkFsrYhtsGs"
                    [server] => cloudflare
                    [vary] => Accept-Encoding
                    [x-powered-by] => Express
                    [report-to] => {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=dwI3nS4UErjmFpMB6DniOHeFmpjCgCVzv2ejve5cHKrB%2FU0syHEeUZMZQyus6%2FG35nNQ3TLy8H9b%2BCBEEggToa73nV0jKg2kHau3WrmlZOU2PXCjKavr8zXMHEwNpKx5q%2FXX6h910OkYoAb%2Blcv%2F9Q%3D%3D"}]}
                    [nel] => {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
                )

        )

    [body] => Invalid license key
    [response] => Array
        (
            [code] => 403
            [message] => Forbidden
        )

    [cookies] => Array
        (
        )

    [filename] => 
    [http_response] => WP_HTTP_Requests_Response Object
        (
            [data] => 
            [headers] => 
            [status] => 
            [response:protected] => WpOrg\Requests\Response Object
                (
                    [body] => Invalid license key
                    [raw] => HTTP/1.1 403 Forbidden
Date: Tue, 14 Apr 2026 20:28:55 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 19
Connection: close
CF-Ray: 9ec575a79c416d20-LAX
CF-Cache-Status: DYNAMIC
Cache-Control: public, max-age=2592000
ETag: W/"13-3ktx/mMbgtvokNAWQkFsrYhtsGs"
Server: cloudflare
Vary: Accept-Encoding
X-Powered-By: Express
Report-To: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=dwI3nS4UErjmFpMB6DniOHeFmpjCgCVzv2ejve5cHKrB%2FU0syHEeUZMZQyus6%2FG35nNQ3TLy8H9b%2BCBEEggToa73nV0jKg2kHau3WrmlZOU2PXCjKavr8zXMHEwNpKx5q%2FXX6h910OkYoAb%2Blcv%2F9Q%3D%3D"}]}
Nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}

Invalid license key
                    [headers] => WpOrg\Requests\Response\Headers Object
                        (
                            [data:protected] => Array
                                (
                                    [date] => Array
                                        (
                                            [0] => Tue, 14 Apr 2026 20:28:55 GMT
                                        )

                                    [content-type] => Array
                                        (
                                            [0] => text/html; charset=utf-8
                                        )

                                    [content-length] => Array
                                        (
                                            [0] => 19
                                        )

                                    [cf-ray] => Array
                                        (
                                            [0] => 9ec575a79c416d20-LAX
                                        )

                                    [cf-cache-status] => Array
                                        (
                                            [0] => DYNAMIC
                                        )

                                    [cache-control] => Array
                                        (
                                            [0] => public, max-age=2592000
                                        )

                                    [etag] => Array
                                        (
                                            [0] => W/"13-3ktx/mMbgtvokNAWQkFsrYhtsGs"
                                        )

                                    [server] => Array
                                        (
                                            [0] => cloudflare
                                        )

                                    [vary] => Array
                                        (
                                            [0] => Accept-Encoding
                                        )

                                    [x-powered-by] => Array
                                        (
                                            [0] => Express
                                        )

                                    [report-to] => Array
                                        (
                                            [0] => {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=dwI3nS4UErjmFpMB6DniOHeFmpjCgCVzv2ejve5cHKrB%2FU0syHEeUZMZQyus6%2FG35nNQ3TLy8H9b%2BCBEEggToa73nV0jKg2kHau3WrmlZOU2PXCjKavr8zXMHEwNpKx5q%2FXX6h910OkYoAb%2Blcv%2F9Q%3D%3D"}]}
                                        )

                                    [nel] => Array
                                        (
                                            [0] => {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
                                        )

                                )

                        )

                    [status_code] => 403
                    [protocol_version] => 1.1
                    [success] => 
                    [redirects] => 0
                    [url] => https://page-optimizer.flyingpress.com/optimizer/
                    [history] => Array
                        (
                        )

                    [cookies] => WpOrg\Requests\Cookie\Jar Object
                        (
                            [cookies:protected] => Array
                                (
                                )

                        )

                )

            [filename:protected] => 
        )

)

Thanks so much for looking into it.

I have changed this ticket back to “not resolved” to accurately reflect the status of this bug. If you believe marking this ticket “resolved” before it’s resolved is the more honest and helpful behavior, kindly explain your reasoning.

Thanks @aurangajeb ! I no longer see ALTER queries in wp-admin.

Yes, @tooni , this appears to be resolved in version 4.9.0.

Yes, the site uses MariaDB.

Hi @devmich,

Thanks for confirming that you’re seeing utm_source in DebugView. I dug deeper and discovered this is a conflict between your plugin and FlyingPress, even when I’ve disabled all relevant FlyingPress optimizations (screenshot) and purged the entire cache. Somehow Site Kit by Google is able to work with FlyingPress but MonsterInsights does not. Let me know if you’re able to figure out what’s different.

Before you respond with a link to FlyingPress’ documentation on Ignored Query Parameters, remember that these ignored GA4 parameters do work with Google’s Site Kit plugin. I’m also aware that adding utm_source to FlyingPress’ Separate Cache for Query Parameters setting might fix the problem, but this isn’t ideal for performance reasons. As mentioned in FlyingPress’ documentation on Customize Ignored Query Parameters, “Ignoring them prevents duplicate cache entries and improves cache efficiency.”

Cheers,

Robert

Much appreciated.

Triggering those other warnings would probably involve reverting to the oldest version of W3TC that integrated Cloudflare, then authorizing. In other words, it’s something that’s fixed for new installations and is a remnant that only affects early adopters. I can understand if that’s not worth fixing.

No need to reply, but feel free to let me know when the next update has been released, and I’ll mark this ticket as resolved.

Sorry; I was working on something else. The site is loading again now.