I am getting this error continuously and have no idea about the cause.
Error: The cache is not initialized and cannot be read by component "Lookup " Error: Failed to prepare the cache for providing data. [SSIS.Pipeline] Error: component "Lookup UBN-StatTypeID" (2021) failed the pre-execute phase and returned error code 0xC0010204.
If you want to use the Cache Connection Manager, the cache must be populated before the lookup operation, using a Cache Transformation inside a DataFlow.
This error suggests that it's that previous operation which has failed, not a problem with the Lookup Transformation itself.