Retrieve Alerts using the legacy REST API

Question

Using the legacy REST API I was able to retrieve alerts following the documentation using Postman. (https://automation.deepsecurity.trendmicro.com/legacy-rest/20_0/index.html?env=onprem#list_alert_types)

But since 1 week I can't retrieve those informations anymore by using the same parameters used before.

Here is what I do :

1. Authenticating using valid user (https://SERVER_IP:PORT/rest/authentication/login)
2. Trying to retrieve alerts using the sID given after authenticating (https://SERVER_IP:PORT/rest/alerts)

I don't understand why I can't retrieve those informations anymore since before I was able to do it.

Here is the configuration and the version

Any idea on what I'm missing ?