WAF Custom rule - LITE account, can't add or update IP in existing/new rules

What is the name of the domain?

Not entitled to use a custom response

What is the error number?

Not entitled to use a custom response

What is the error message?

Not entitled to use a custom response

What is the issue you’re encountering

WAF Custom rule - LITE account, can’t add or update IP in existing/new rules I get error “not entitled to use a custom response”

Was the site working with SSL prior to adding it to Cloudflare?

Yes

What is the current SSL/TLS setting?

Off

Screenshot of the error

When I try to perform this action on free account it works.

I found out that this is some kind of system error / bug, since this was previous Premium account and then converted to Lite, and that is happening on system level some kind of conflict and this error occurs.

How can I reach CF support to fix my account?