Our organization is trying to create a brand new workforce project, but we are encountering an error. This occurs right after the Create Project button is selected and a name/summary is picked; the project begins loading but the following error appears:

Note we've tried a couple different times to create a project, using different accounts (eg. a creator and an admin AGOL account) and also with different names but keep getting the same error. Any idea why workforce would be throwing this error?