@ozaki You should take a look at the hive metastore configuration in Hue. It sounds like you have Hue access through hive, but you do not have access to the hive metastore. The hive metastore stores the information about which hive schemas/databases exist, and which tables are found within each.
I would comment more about specific configuration, but I am not sure what platform you are using, or versions. To troubleshoot further, while using HUE UI, monitor the hue logs, and hive logs for more specific information as the Hue UI shows limited error details.
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Thanks,
Steven @ DFHZ