Before attempting this fix.: Please read about game pitch and make sure you have it at correct level.

Pitch level on Pinball Brothers

Enter service mode, and manually take one ball out of the trough.

Get yourself a good plier, and 4~5 yellow sticky notes (regular paper work just fine)

Fold the paper 1 or 2 times. This is for protection, so we don't schrats up the polish. Make sure you cover the area where we are going to use the plier. 

You can carefully bend the scoope clock or counterclockwise, and test the new trajectory with the ball (Airlock will eject ball automatically in service mode) until you are satisfied.

The downwards arrow shows where it is supposedly land after the scoope is perfect aligned, there is no way to make it 100% but close.