Problem with publishing an update of a plugin

Hi team 👋

I am trying to publish a v4 version update for a plugin I am creating for Figma, but I’m getting the following error:

“XHR for “/api/plugins/1535371360850075397/upload” failed with status 403”

and the suggestion:

“Please try again, or report this file to the Figma team for support.”

Where should I submit the file? There is no link provided, and I couldn’t find any instructions.