Last week I moved to a new provider with the SMF. Everything works but only now I become the message that its not secure. Ik have installed Letsencrypts certicaat. The provider give the follow message:
Mixed Content: The page at 'https://www.meatloaf.nl/forum/' was loaded over HTTPS, but requested an insecure stylesheet 'http://www.meat-loaf.nl/forum/Themes/classic/style.css?fin11'. This request has been blocked; the content must be served over HTTPS.
(index):1 Mixed Content: The page at 'https://www.meatloaf.nl/forum/' was loaded over HTTPS, but requested an insecure stylesheet 'http://www.meat-loaf.nl/forum/Themes/default/print.css?fin11'. This request has been blocked; the content must be served over HTTPS.
I don't have a idea where I can fixed this.
Thanks for the help
you need to upgrade to SMF 2.0 then enable the proxy to fix this issue completely.
SMF 1.1.* is end of life already and not supporting some modern versions of php.