The error appears if the path for Object storage is misconfigured. Such a job won't be performed as the Agent won't be able to access the Object storage by this path.
To see the actual path that is reported in the error message go to the job run -> Agents. Select the agent from the error message and on tab Overview see its path.
The correct way to configure the path to an Object storage is to use the appropriate path macro and select one of the configured storages. The path will be the target object in the storage. Read more about setting the path correctly here.