Problem with website

Hello,i installed cloudflare ssl(settings are on medium and flexible) on my website and downloaded plugin simple ssl and activated it, now when i try to login on my wordpress website this problem pops out
This site can’t provide a secure connection uses an unsupported protocol.
Can you help me?Thanks for reading.

When did you enable Cloudflare exactly? Cloudflare takes up to 24 hours to set up a certificate. If you already waited for 24 hours, please contact Cloudflare because I can’t fix their SSL settings.

I activated it 1hour ago.I will wait 24h if dont work i will contact them.Thanks again!