Confluence API OAuth error: Current user not permitted to use Confluence

I’m not sure what I’m doing wrong: I have successfully authenticated with my Confluence through the 3LO app auth flow, but when I try to run any API commands, like https://transposit.atlassian.net/wiki/rest/api/settings/systemInfo, I get a “Current user not permitted to use Confluence” error. If my admin goes to look at the authorizations for my user for this app, it’s definitely authorized…anyone have any ideas what I’m doing wrong?