Original Airbus CBT's are only running with Internet Explorer in compatibilty view mode. This fact is also valid even for Windows 10 units. Internet Explorer is still available there. Just open a search window and look for ie.
Effect without compatibilty mode --> after opening an original Airbus CBT module, you just see a white window with no content
Right click the top bar of your internet explorer and activate "command bar"
Open internet option by using properties
Activate compatibilty view for site https://swisslms.lufthansa-aviation-training.com
Close and jump back to your CBT module
Your are able now to enter the module and work it through.
if you have to work with a Airbus A340 CBT:
page scrolling only works by mouse click or stick! no scrolling by finger touch