Salesforce and Adobe sign Integration : Receiving error when sending a agreement on button click

Hi,

I have an integration of Adobe Sign with Salesforce.

I have created an Agreement Template record in Salesforce.

Also one button is created on Opportunity object with Name "Send for Signature-custom" which open the following URL on click:

/apex/echosign_dev1__AgreementTemplateProcess?masterId={!Opportunity.Id}&templateId=a2N3B000000MCNI 

where {!Opportunity.Id} is having the current opportunity record Id, and

a2N3B000000MCNI is a agreement template Id which we are using to send.

So, when click on that button, an agreement record should be created and an email should send to an emailId passed into the template but agreement is created with the following error and no email is sent to that Id.

"The Form Filler role is not currently enabled in your Adobe Sign account. Please contact your Salesforce Administrator to enable this feature."

Could you please help me with the same.