CAF Dropdown returning null value


Currently we are migrating code from wM 8.2 to 9.12, We have a front end Application designed using CAF in 8.x and previous environments.After migration and setting up the environment we are unable to get the dropdown values, whenever we are sdelcting any Dropdown value we are getting nullPoint exception.
Dropdown values are available in the screen ,when we select any value and proceed further by clicking a a button which runs a Javascript and failing as null point exception in the browser.

Thanks and Regards,
Tabares MD

SubmitandClose_Button_script.txt (3.63 KB)