Digital Signature capturing text box not displaying for eSignature

Hi, 1. Digital signature capturing block not showing for esignature in document. 2. After clicking on ACCEPT, sending email to download the completed document The email content is: ---------------------------------------------- You can securely download your signed documents here: Go to Documents Thank you for using e-SignLiveâ„¢! Your e-SignLiveâ„¢ Team 1-855-MYESIGN --------------------------------------------------------------- Below are the request JSON object and also attached the generated pdf document. Please let me know, is there anything missing from the request. Request JSON is: {"trashed":"true","documents":[{"extract":"true","name":"SmartApp_en_2014491","approvals":[{"role":"SIGNER_2008635"},{"role":"SIGNER_2008635"},{"role":"SIGNER_2008635"}]}],"roles":[{"id":"SIGNER_2008635","signers":[{"email":"[email protected]","firstName":"Eapp","id":"SIGNER_2008635","lastName":"Tpp","auth":{"challenges":[{"maskInput":"true","answer":"testing","question":"What was the name of the city where your mother was born?"}],"scheme":"CHALLENGE"}}]}],"status":"SENT","name":"BMO Insurance eSign Package","type":"PACKAGE","userName":"eBix","userPwd":"3F166721197B5"}