Powerdraft CONNECT - Level manager icon not working

Hello!

On Powerdraft CONNECT the level manager icon is not working. When I click on it, no window appears. The only way to open the level manager is to click on the small arrow next to it and to open the flyout window. No chance to change the size of the flyout window though.

Does anyone know how to solve this?

Thank you and kind regards

Hannes