Error and NullPointer Exeption for a Cohort Indicator evaluation API

OPENMRS: 2.3.2:

Question: Hello, am a bit new on the OpenMRS Reports module. Am getting a “Null pointer exception” on server logs and an error response when i send a get request (“reportingrest/cohort/749870b2-7cf5-46ab-9b85-d7684029cf2d”) to get data (evaluated indicator) for a cohort-based indicators with the provided uuid.

Tried looking on API through Swagger and other reference could not find one. PLEASE