The errors “The page isn’t redirecting properly” or “ERR_TOO_MANY_REDIRECTS” indicates a redirect loop between Cloudflare and your origin server. The most common cause of that we see here is that your SSL/TLS mode is Flexible, if that’s the case switch it to Full (Strict). More details in this Community Tip.
Hi there, this might be related to your SSL configuration. Can you visit https://dash.cloudflare.com/?to=/:account/support and choose Technical - Website and then SSL and follow the wizard there. This should guide you to some suggestions.