Adobe Sign document Password- Need to provide password

Hi I created a adobse sign document that my recipient sent back to me and I am uploading it to a website as part of a disability claim. The website is asking for me to provide the document password in order for the file to be uploaded to the website. However, I never set a password for the document, I assume that it is protected as part of the adobe sign process?  Is there a password applied to the document? What is it?