ORA-00569
Failed to acquire global enqueue.
Cause
A prior error occurred on one of the instances in the cluster. Typically errors are caused by shared pool resource contention.
Action
Check for and resolve prior errors on all instances in the cluster. If there is shared pool resource contention, increase the SHARED_POOL_SIZE, DML_LOCKS, PROCESSES, TRANSACTIONS, CLUSTER_DATABASE_INSTANCES and PARALLEL_MAX_SERVERS initialization parameters.