Daycare nap issues

My 8 month old baby started daycare 2 weeks ago. He was a contact only napper until 6.5 months when we started nap training. While he goes down for naps in his crib, they range from like 30-45 mins, with only occasionally going past an hour. At daycare the last few days he’s woken up inconsolable after only 20 mins and won’t go back to sleep. I had to pick him up today because he wouldn’t stop crying.

Any suggestions? I’m so discouraged and worried he’ll never get longer naps and daycare just won’t work out.