I am in the last action where the process builder calls the invocable apex class. When i look for the class it appears with the LabelName
 'Give a Thanks Badge' and the lookups do not show up on the Giver Id and Receiver Id fields. Can someone tell me what am I doing wrong?

If i put the apex class name as is shown in the trail it still does not find the Giver Id and Receiver Id values. My apex code has an active status.

Thank you.