Enable Entitlement balance in Employee Self Service Responsibility:

Navigation and implementation steps to achieve this:
Step 1: Create a Element Set: XXHR_LOA

Step 2: Add the elements which has Earned Leave Plan and Sick Leave Plan, In Classification Rules select Absence.

Step 3: Navigate to System Administrator Responsibility and choose system profile and query for
HR: Accrual Plan Element Set Displayed to User, in Site level value choose XXHR_LOA element set that you have created.

Step 4: Now you are done with the settings, to see the changes navigate to
Employee Self Service --> Leave Of Absence --> Entitlement Balances.