APP-PER-34938 Value Set Has Invalid Definition

Hi ,

i have created two table type value sets to tag them to input values of element entry window.

Here first input value has value set giving list of values from database table. whereas second input value field has values from second value set which is dependent on values of first value set.

Iam using this on forms (element entry window on assignment screen of enter and maintain form)

I have used $FLEX$  in the dependent value set query  with syntax as 

"and pac.segment1 = :$FLEX$.Leave_Encash_SIT_date"

but when i tried  tagging these value sets to input values field i got the following error:-