Hi. Yes, disabling compression did fix the issue. Thanks for your help!
On a sidenote, it was working before last WP update. Not sure if there is something you can fix to make it work..
I have the exact same issue. When I activate WP Supercache with 4.9.4, I get an 500 error. When I disable it, everything is back to normal. Please help!!!
ERR_CONTENT_DECODING_FAILED
