Cloudflare Error 521 when opening the editor Home › Forums › Newsletter Plugin Support › Cloudflare Error 521 when opening the editor This topic has 0 replies, 1 voice, and was last updated 4 years, 6 months ago by Anonymous. Viewing 1 post (of 1 total) Author Posts June 24, 2020 at 12:57 pm #254248 AnonymousInactive Hello There, I have just installed TNP in WP. When I wanted to check this Plugin out, The Website throws the Cloudflare Error 521 Page. This begins after selecting any design after selecting "Create Newsletter" Running PHP 7.4 on an Ionos Webspace. I am on the newest Updates. Any Idea? Author Posts Check out our premium plans with priority support. Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In