Security Block

May I ask if this the 1020 error is presented to you or something else? :thinking:

Can you share a screenshot here with us?

Are you using some custom-made Firewall Rules at Cloudflare dashboard β†’ Security β†’ WAF? :thinking:

Which Cloudflare Plan are you using for your domain/website?

How large the zip file it is you’re trying to upload?
What kind of content does it contain?

By navigating to the CF dashboard β†’ Security β†’ Overview, you should see the blocked event and more details which service did blocked you, timestamp, request, IP, user-agent and more.