Environment display problem

Hi, I have a problem with Adobi's environment. For a few weeks now,  my Adobi open with the new environment interface. How can I go back to the classic enviroment knowing that even by changing the HTTP link the system always reverts to the new environment ? In addition, the link allowing the swap is not display anymore.

What can I do ?

Thank you for your help.

In classic environment it's suppose to be :  

https://XXXXXXX.na1.echosign.com/account/home

https://XXXXXXX.na1.echosign.com/public/compose

https://XXXXXXX.na1.echosign.com/account/agreements

https://XXXXXXX.na1.echosign.com/public/agreements

In my case here what I have (new environment) :

https://XXXXXXX.na1.echosign.com/account/homeJS  

https://XXXXXXX.na1.echosign.com/public/compose  (this link is ok)

https://XXXXXXX.na1.echosign.com/public/agreements

https://XXXXXXX.na1.echosign.com/public/agreements (this link is ok)