Why is this complaining?

[hashelven]

Look at this (I am using Opera)

I also tried this game on IE 11 and it used to work (as in a few weeks ago) but not any more. Does anyone have this problem?
I also tried using Edge but still same problem. (You might be aware that Edge has been changed to run like Chrome does.)

[Bad_Request]

The problem is the same as this one

TrafficTalent is not opening up

Yes, the Unity webplayer plugin is no longer supported on modern browsers and it’s been a few years now. It was possible to download the plugin and play it with Microsoft Internet Explorer, but for having tried just before answering you, it seems that it no longer works and Internet Explorer will stop in June of this year anyway If the game is ever remastered with modern technologies or if we find a way to make Unity webplayer games playable, we will update it but for now it is not possible.

[hashelven]

OK thanks. You solve my problems so well!