can´t sign documents in ipad apple

Hello,

Thanks for your response.

Here are the steps i followed to get this error:

1. Opened a pdf file with forms in Adobe Acrobat for ipad
2. Modified the form with the information required
3. Opened the form in Adobe Sign
4. Selected the option "Sign in person"
5. The next screen is displayed with the document added and waiting for me to add a recipient email
6. I added the email of the signer
7. Clicked on "Sign" link displayed at the top right of the application
8. The pdf is being loaded for the signer
9. I click on "I am the signer" prompt
10. And the error is displayed.

This is what i already try:

• I already tryed to reinstall the application and it has the same behavior.
• I already tryed on WiFi or 4g (Ipad has sim card)
• I already tryed on a different adobe sign account and the same behavior.
• I already tryed on another ipad and has the same behavior.
• I already tryed on 2 different icloud accounts and has the same behavior.
• I already tryed on different IOS versions (9.3.3, 9.3.4, 9.3.5)

I ran out of ideas to try to fix it, please help me.

Best regards!