Help... report a bug... gives an expired certificate error in browser.

[JDLH]

When first I use the Tomahawk Player menu item Help... Report A Bug... , my browser displays an error about an invalid certificate. The URL is https://bugs.tomahawk-player.org/ . The certificate displayed by that server appears to have expired in 2014.
When I make an exception for that expired certificate, I am redirected to https://github.com/tomahawk-player/tomahawk/issues, and all works as expected.

It would be good for the certificate at https://bugs.tomahawk-player.org/ to be current and valid.

I am using Tomahawk player 0.8.4 on Mac OS X 10.11.