CosmosDB - Partially working

I succesfully connected CosmosDB, but I cannot “GET” item this drops error. I can create new Items, containers, delete but when I want get it drops out errors.

Authorization failed - please check your credentials

The input authorization token can’t serve the request. The wrong key is being used or the expected payload is not built as per the protocol.

I am using Master key that succesfully can create and delete entries in db