Thanks for pointing that out. I checked my User Card in Business Central and I already have the SUPER role assigned, along with other sets like LOCAL and LOGIN. Since SUPER gives full permissions, I don’t think this is a permissions issue in my case.
I’ve also verified my app.json dependencies against the exact versions in Extension Management, cleared the .alpackages cache, and retried symbol download. Unfortunately, I’m still facing the same Internal Server Error when requesting System Application and Application packages.
It looks like the problem may be on the service side of the trial tenant rather than my configuration or permissions. I’ll raise this through the Report a problem option in Business Central and include the Request IDs and Session IDs from my logs.