IVLE LAPI will soon be depreciated as we are in the process of revamping the entire API library and replacing it with one that is easier and more secure.
The new set of APIs will be inline with the new structure of the NUS LMS. This is expected to be ready for beta testing sometime in Jan 2018.
Apologies for the inconvenience caused.
For those users who are interested to dip into this new set of APIs, please register your interest by contacting us at firstname.lastname@example.org.