Crystal Reports - connection type SAP Business One

Hello,
could anybody show me the magic how to establish connection type SAP Business One ?
On the same server where runs the Crystal Reports runs SAP B1 client.
SAP client has not problem to connect to Database.
Crystal Report doesn't show me reachable databases.
Once it was showed , but then it disappeared and never again showed.

Crystal Report 2016
SAP B1 10 for HANA

Thank You
Regards Zdenek Chládek