Hello Karina,
As I’ve already answered in the email correspondence, you should try disabling the gzip compression in Performance>Browser Cache, save all settings and purge the cache and see if the issue persists.
If the issue is gone after that it means that you have already had gzip compression or Zlib compression enabled on some level, server-side, or some other plugins and should keep gzip compression enabled.
Since you are using Cloudflare, you most likely have brotli enabled in Cloudflare also.
I hope this helps!
Thanks!