AWE step Criteria error during settlement approval

 Hi -

We are implementing custom AWE framework on Settlements in 9.1/8.51. I configured the process definitions for two levels of approval and the approvals have monetary criteria at their respective steps. When I submit the transaction, it shows there is an error with criteria as it is missing some value. I have setup Definition Criteria and Path Criteria to be always true. I have the steps with user defined monetary criteria What could be wrong here? The error is shown below;

Criteria check encountered an error. Check input values. (18081,1087) EOAW_CRITERIA.DEFINITION.CriteriaRec.OnExecute Name:Check PCPC:5696 Statement:113 
Called from:EOAW_CRITERIA.DEFINITION.CriteriaEntered.OnEx ecute Name:Check Statement:16