Cloudflare access page is visible to customers

Customers to the shop website are coming across this page in Google. What do I do to prevent this?

https://mydollbestfriendco.cloudflareaccess.com/cdn-cgi/access/login/mydollbestfriend.co.uk?kid=0fd110aab429b00efbb6aae5dbfa49f1bf3db35ce857768f6b73f7fb5691e77e&redirect_url=%2Fadmin&meta=eyJraWQiOiJiMTgyODNmZmRhODkwYzg0MGFhNTI5Njc0ZTc1ZjllNTk1MTQ0MDllNWU1NWUyZDBiYWQ1Nzk1ODU4ZTY2MjI4IiwiYWxnIjoiUlMyNTYiLCJ0eXAiOiJKV1QifQ.eyJzZXJ2aWNlX3Rva2VuX3N0YXR1cyI6ZmFsc2UsIm5iZiI6MTU4MzMzNDEwNywiaWF0IjoxNTgzMzM0MTA3LCJzZXJ2aWNlX3Rva2VuX2lkIjoiIiwiYXVkIjoiMGZkMTEwYWFiNDI5YjAwZWZiYjZhYWU1ZGJmYTQ5ZjFiZjNkYjM1Y2U4NTc3NjhmNmI3M2Y3ZmI1NjkxZTc3ZSIsImF1dGhfc3RhdHVzIjoiTk9ORSJ9.QOidv0X4uv5WUyUKJbDHwM4djzBlYKYrFr-26aHnOJvmtafyLIS9Z7SdnPSGiw_MUqYY2MJmc8hQPYylVH_IS4UeaJV7lzd907zmjc9vnGwHqQCeQH7jy5x_J6coAliCKym9LSwFOUsFnykxbw_8ZVG3C5xJRK0tvtTTmlwKbn2E7NGvRcI8HevhJ0An8Qv--cfHl8DiWs_6h7lH5EvaBfOZfz6AbBMH4mbv_3_AQ7ZVB4KQX5gCpMX1joLt9Ui_1oYAYWYKNSBKwneDgLROufEgmWt9ISfsd4UkalvK3iU0Tok-FdHz1_jaFojM3xYcKdUkGvuMsBeqtxoyd2ytcA&v=5e58391d