Site does not work after signing in via Yahoo

What I did:
1. Clicked "Sign in"
2. Clicked Yahoo
3. Loged in to Yahoo

When I try to open http://share.mapbbcode.org/ I get:
```
This page isn’t working
share.mapbbcode.org didn’t send any data.
ERR_EMPTY_RESPONSE
```
When I open site in private mode or other browser (without signing in), the site works fine.