Kaltura_Client_Exception thrown

Invalid KS "ZjZjNWE5YzY2ZTg2NGJkMWQwMDMwMzgwMjRjZTQ3NWY4NDUxYzUwMHwxMDE7OzE0NzUxMjE1MDc7MjsxNDc1MDM1MTA3LjI2OTtBbm9ueW1vdXM7ZWRpdDoq", Error "-1,INVALID_STR"