Fatal error was encountered while connecting to AzureAD.
The following error was observed in the ADC.wlog:
FATAL ADCService - {{adxxxxxx-14f7-xxxx-b2c3-xxxxxxxxx81a}} Fatal error in Synchronize()
System.AggregateException: One or more errors occurred. ---> System.ArgumentNullException: Value cannot be null.
Parameter name: LoginDomain Id cannot be lessthan or equal 0.
...
---> (Inner Exception #0) System.ArgumentNullException: Value cannot be null.
Parameter name: LoginDomain Id cannot be lessthan or equal 0.