On 16 Jan 2021, at 18:55, Alasdair G Kergon <agk@fosdem.org> wrote:

On Sat, Jan 16, 2021 at 05:45:53PM +0000, D.E. Goodman-Wilson wrote:

  Hello!
  I Attempted to order my tshirt but received the following error:
  Error:
  Traceback:
  Error: QWeb2: Template 'portal.Chatter' not found
  exception@https://treasure.fosdem.org/web/content/392-ccc15f8/1/web.assets_common_lazy.js:3593:16
  _render@https://treasure.fosdem.org/web/content/392-ccc15f8/1/web.assets_common_lazy.js:3638:112
  render@https://treasure.fosdem.org/web/content/392-ccc15f8/1/web.assets_common_lazy.js:3634:158
  renderElement@https://treasure.fosdem.org/web/content/392-ccc15f8/1/web.assets_common_lazy.js:3995:1143
  https://treasure.fosdem.org/web/content/392-ccc15f8/1/web.assets_common_lazy.js:4005:19
  promiseReactionJob@[native code]

Can you confirm at what stage of the ordering process this happened?
And which web browser/platform you were using?

Alasdair