Dremio doesn't start after upgrade 2.0.1

Hi,
I upgraded using the rpm distribution of the release 2.0.1
after that i can’t start the service. The server.log show me this message:

__jobResultsStore: success (2615ms). Healthy
INFORMATION_SCHEMA: success (0ms). Healthy
__logs: success (625ms). Healthy
__support: success (620ms). Healthy
__datasetDownload: success (2666ms). Healthy
sys: success (0ms). Healthy
$scratch: success (2677ms). Healthy
Hive Exage: success (487ms). Healthy
__home: success (2696ms). Healthy
HDFS: success (2223ms). Healthy
__accelerator: success (2666ms). Healthy
Hbase: success (2688ms). Healthy

2018-05-14 12:48:02,269 [main] INFO c.d.service.jobs.LocalJobsService - Starting JobsService
2018-05-14 12:48:02,377 [main] INFO c.d.service.jobs.LocalJobsService - JobsService is up
2018-05-14 12:48:02,388 [main] ERROR c.dremio.common.CatastrophicFailure - Catastrophic Failure Occurred, exiting. Information message: Failed to start services, daemon exiting.
java.lang.NullPointerException: Unknown store creator com.dremio.service.reflection.store.MaterializationStore$MaterializationStoreCreator
** at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:250) ~[guava-18.0.jar:na]**
at com.dremio.datastore.LocalKVStoreProvider.getStore(LocalKVStoreProvider.java:82) ~[dremio-services-datastore-2.0.1-201804132205050000-10b1de0.jar:2.0.1-201804132205050000-10b1de0]

Any pointers on what the issue could be?
Thanks

Hi,

What linux distribution are you using?

thanks,
Doron