There's an error on HWDSB.tv (this may be a https://github.com/hwdsbcommons/video-portal issue) that seems to be connected with the External Media Plugin and it's dependency on Media-Editor, which seems to be missing. I'm not sure if this is a change because of PHP 7.3, or because of changes to Media-Editor due to the new Editor in WP 5 (Classic Editor is enabled Network-Wide).
There's an error on HWDSB.tv (this may be a https://github.com/hwdsbcommons/video-portal issue) that seems to be connected with the External Media Plugin and it's dependency on Media-Editor, which seems to be missing. I'm not sure if this is a change because of PHP 7.3, or because of changes to Media-Editor due to the new Editor in WP 5 (Classic Editor is enabled Network-Wide).