Do you have a load at outputs or are you connecting only the multimetr switched for current measurement ?
Each output D0..D11 has overcurrent protection and can deliver maximum of 2 A. You have to have proper load connected to there. And based on the load you have to select the proper 12 V power supply for CONTROLLINO. If you have some of the loads for example 5 A, than approx. 5,5 A power supply shall be selected.