field 'of_Open_PRC_FSC_Email_Cases_On_Create__c' can not be grouped in a query call code example

Example: [object Object]: BY KimbleOne__DeliveryGroup__c, CreatedDate ^ ERROR at Row:1:Column:142 field 'CreatedDate' can not be grouped in a query call

SELECT Name, Max(CreatedDate)
FROM Account
GROUP BY Name
LIMIT 5