@gab1luize, everything is fine except the URL. Just try the following URL https://kc.kobotoolbox.org
instead of https://kc.kobotoolbox.org/ampdev
.
Under the username, type in ampdev
or acsouto
depending on the username you would like to use.
Under the password, type in the correct password for the account. Doing this should solve your issue.
You should be able to learn more about the configuration through this support article shared previously: