The site [Phonel.ir](https://phonel.ir) uses a SSL certificate. Why is the Error message in red? Is there a problem with the SSL certification? 

I sometimes use a proxy. Can that be the reason?

[![Screenshot of address bar with a red warning triangle on the lock icon.](https://i.stack.imgur.com/nyi63.jpg)](https://i.stack.imgur.com/nyi63.jpg)