We have integrated Paypal "Button Manager api" for our clients in 2015,till last wednesday it was working fine but since then it has stopped working and throwing the error "404 not found".
I have already checked the token,Api username, and Password. everything seems to be fine. Can anyone please help us/guide us on how to resolve this issue?
I would recommend upgrading to the newer integration. Deprecated software tends to get more frustrating to maintain over time as less and less people use it.