Digital Signature Not Capturing

Hi, To the above link response, I am posting the request here. I am getting error in capturing digital signature, could you please suggest what could be the issue. Screen shot attached and below is the request json Request JSON: ========================================== { "trashed": "true", "documents": [ { "extract": "true", "name": "SmartApp_en_2014614", "approvals": [ { "fields": [ { "name": "RepPropIns1Sign", "extract": "true", "type": "SIGNATURE", "subtype": "CAPTURE" }, { "name": "DateRepPropIns1", "extract": "true", "type": "INPUT", "subtype": "LABEL" } ], "role": "SIGNER_2008662" }, { "fields": [ { "name": "AuthPropIns1Sign", "extract": "true", "type": "SIGNATURE", "subtype": "CAPTURE" }, { "name": "DateAuthPropIns1", "extract": "true", "type": "INPUT", "subtype": "LABEL" } ], "role": "SIGNER_2008662" }, { "fields": [ { "name": "RepPropOwnCompSign", "extract": "true", "type": "SIGNATURE", "subtype": "CAPTURE" }, { "name": "DateRepPropOwnComp", "extract": "true", "type": "INPUT", "subtype": "LABEL" } ], "role": "SIGNER_2008663" } ] } ], "roles": [ { "id": "SIGNER_2008662", "signers": [ { "email": "[email protected]", "firstName": "asgasg", "id": "SIGNER_2008662", "lastName": "aa", "auth": { "challenges": [ { "maskInput": "true", "answer": "testing", "question": "What was the name of the city where your mother was born?" } ], "scheme": "CHALLENGE" } } ] }, { "id": "SIGNER_2008663", "signers": [ { "email": "[email protected]", "firstName": "Santosh", "id": "SIGNER_2008663", "lastName": "G", "auth": { "challenges": [ { "maskInput": "true", "answer": "testing", "question": "What was your favourite toy when you were a child?" } ], "scheme": "CHALLENGE" } } ] } ], "status": "SENT", "language": "en", "name": "BMO Insurance eSign Package", "type": "PACKAGE", "userName": "eBix", "userPwd": "3F166721197B5" } ==========================================