Polar question (not syncing for some reason)

What is the best way to put in Spinning work? Today was my first ride in over 2 years. Granted that I got through 14 minutes. Everything is adjusted perfectly now.

I have a Polar watch, but the line seems to be broken. Today hasn’t been sync’d yet, and I verified all the stuff I needed to.

Use Download old Data button to get recent activities.

OK. Thank you both for your answers!