Incorrect Note Stem Direction

[machtschnell]

It appears that all note stems on the treble clef staff are pointing up. The following algorithm can be applied for the treble clef staff:

1. If note is below line three (3), stem direction is up.
2. If note is on or above line three (3), stem direction is down.

The following is an excerpt from How To Read Sheet Music: A Step-by-Step Guide:

The note stem is a thin line that extends either up or down from the note head. The line extends from the right if pointing upward or from the left if pointing downward. The direction of the line doesn’t affect how you play the note but serves to make the notes easier to read while allowing them to fit neatly on the staff. As a rule, any notes at or above the “B” line on the staff have downward pointing stems, those notes below the “B” line have upward pointing stems.