appointments not defined js bug

Uncaught ReferenceError: Appointments is not defined(anonymous function) @ app-services.js?ver=4.4.2:4j @ jquery.js?ver=1.11.3:2k.fireWith @ jquery.js?ver=1.11.3:2m.extend.ready @ jquery.js?ver=1.11.3:2J @ jquery.js?ver=1.11.3:2

was fine with standard appointment as far as i remember
can choose day, not date