Console error is due to multi heights in your furni tables,
black boxes check all your links are correct in renderer config, could also be mismatch ids.
chrome dev tools would help more if you have that.
Download winacme for Windows, run the .exe, follow the instructions to obtain and BIND SSL to ISS, set in your cms force https, go in cloudflare and set to strict for SSL and enable orgion pulls, force https
Something along those lines.
This error normally related to session domain in env, set it to your domain without www, and then try again using ingonito or clear your whole browser history etc