Dryer not heating much when I put clothes the second time

Combo Kenmore dryer

model # 2661532412.

Serie # MD020549C

Fuses: 30 A

It's not heating much but dries some when putting clothes for the first time. Then, no matter how much I keep trying to put the clothes to dry , they still feel damped or with some moist in them.

Thank you for helping me.

Kenmore Combo dryer