Personal Access Tokens not appearing in Service Portal

Hello, I was working with SMAX and Power BI (via oData). In this connection, it uses personal access tokens (which I have already done), but now when I enter the tenant (a trial tenant), the option for tokens no longer appears on the service portal. I wanted to ask if anyone knows why that option is no longer available to me, as it was working perfectly a few days ago. I am the trial admin of the tenant and everything. Thanks in advance!