Site cant provide a secure connection

my web app was working fine yesterday and the day before but now I am getting an error:

This site can’t provide a secure connection sent an invalid response.


When I checked the logs it showed the following as the last entry, - - [18/May/2021:15:13:25 +0000] “OPTIONS * HTTP/1.0” 200 126 “-” “Apache/2.4.38 (Debian) PHP/7.4.8 (internal dummy connection)”

I restarted the app and still having the same problem.

Is anyone able to assist with this issue?

ERR_SSL_PROTOCOL_ERROR looks like it might be certificate related.

Any advice is greatly appreciated!


Hello! Are you on google chrome ? and are you using autogenerated domain ? If yes we had an issue this week. was blacklisted by Google because of some users bad usage of it. But they unblacklisted it and it works fine again. maybe you have some cache on your side. Can you try again please ?