OLAP Cube custom view

[alexaht]

Hi,

I'm trying to work with knowage 6.2.2 in docker and PostgreSQL DB. All configuration files were changed to work with new DB, I can get and save any data to DB, however, when I'm trying to create a custom view for Olap Cube getting the error

{"errors":[{"localizedMessage":"sbi.olap.subobject.save.error","message":"it.eng.spagobi.utilities.exceptions.SpagoBIRestServiceException: sbi.olap.subobject.save.error","errorService":""}]}

At the same time in container log I can see next error:

it.eng.spagobi.engines.whatif.api.SubObjectResource.save: Error saving the subobject KO - You cannot save subobjects
knowage_1  | it.eng.spagobi.engines.whatif.exception.RestExceptionMapper.toResponse: Catched error
knowage_1  | it.eng.spagobi.utilities.exceptions.SpagoBIRestServiceException: sbi.olap.subobject.save.error

Please advice...