I have created a formula field to populate a Date for Renewal but it is not working. I keep getting an error. 

This formula works great in my SFDC instance but it will not work in Zoho!

DATE(

IF(AND(MONTH( ${CustomModule1.Effective Date}) = 1, DAY( ${CustomModule1.Effective Date}) = 1), (YEAR(${CustomModule1.Effective Date) + ${CustomModule1.Years Committed} ) - 1,(YEAR( ${CustomModule1.Effective Date} ) + ${CustomModule1.Years Committed})),

IF(MONTH(${CustomModule1.Effective Date}) = 1, 12,

IF(DAY(${CustomModule1.Effective Date}) > 1, MONTH(${CustomModule1.Effective Date}), (MONTH(${CustomModule1.Effective Date}) - 1))),

IF(DAY(${CustomModule1.Effective Date}) > 1, (DAY(${CustomModule1.Effective Date}) - 1),

CASE(MONTH(${CustomModule1.Effective Date}),

1, 31,

2, 31,

3, 28,

4, 31,

5, 30,

6, 31,

7, 30,

8, 31,

9, 31,

10, 30,

11, 31,

12, 30, null))

)