My S60 doesn’t synch with Garmin golf app on my iPhone.

My S60 doesn’t synch properly with the Garmin golf app my iPhone anymore. It used to work fine, then it synched the number of strokes, but not the position in the course anymore. Now it doesn’t synch the strokes either anymore. Scorecards are saved. I only get them on my phone if I synch the S60 via a Mac.

s60 does connect with Garmin connect. 

Cannyou help?