Critical error wordpress on creating PDF

We have just activated cloudflare on our website. Only when CF is activated and running we get a critical wordpress error when our server sided script tries to create a PDF brochure. (try to print a property brochure on

Cause the script uses images from the server we have created a firewall rule allowing traffic from its own server IP. Still this does not solve the problem.

Does anyone have an idea how to solve this?


Were you seeing something in the Firewall Log that was connected to this error?

Try allowing it to “bypass” not allow!

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