An element of the robotic library device could not be sensed. The cause could be any of the following:
Check the configuration of the robot against the recommended configuration as indicated in the documentation for robot configuration.
Check the health of the robotic device by using a robot test utility, then close the test utility when finished.
Check for the existence and permissions of the temporary robotic database and the temporary database directory/folder, which is /usr/openv/volmgr/misc/robotic_db (UNIX and Linux) or install_path\Volmgr\misc\robotic_db (Windows). Create the directory/folder and adjust the permissions as needed so that the robotic daemon/process can create it or use it. Stop and restart ltid (the device daemon on UNIX and Linux or the NetBackup Device Manager service on Windows).