Styler Toolbar can't get activated || SOLVED

Hello folks!

I've downloaded styler and a leopard theme for der win explorer toolbar.
I installed it and wanted to apply the toolbar. But nothing happened. And I can't activate the styler toolbar in the explorer via rightklick.
I restarted my system and redownloaded styler a cuple of times. But no difference.

Is someone out there who knows that issue?

EDIT:

open control panel,
open Internet Options,
select the Programs tab at the top,
click Manage Addons,
find StylerToolbar on the list,
enable it,
click ok, then ok