Error when trying to make a suggestion

Whenever I try to submit a suggestion I get the error message below. That persists even after restarting Anki. Any suggestions? I already missed a couple of suggestions I wanted to make because of this.

Error message (don't change this)
Anki 23.12 (55ef11af)  (ao)
Python 3.9.15 Qt 5.15.2 PyQt 5.15.5
Platform: Windows-10-10.0.19045

Traceback (most recent call last):

  File "C:\Users\JPedr\AppData\Roaming\Anki2\addons21\1322529746\gui\suggestion_dialog.py", line 412, in accept
    self._callback(self.suggestion_meta())

  File "C:\Users\JPedr\AppData\Roaming\Anki2\addons21\1322529746\gui\suggestion_dialog.py", line 95, in <lambda>
    callback=lambda suggestion_meta: _on_suggestion_dialog_for_single_suggestion_closed(

  File "C:\Users\JPedr\AppData\Roaming\Anki2\addons21\1322529746\gui\suggestion_dialog.py", line 116, in _on_suggestion_dialog_for_single_suggestion_closed
    if suggest_note_update(

  File "C:\Users\JPedr\AppData\Roaming\Anki2\addons21\1322529746\main\suggestions.py", line 81, in suggest_note_update
    client.create_change_note_suggestion(

  File "C:\Users\JPedr\AppData\Roaming\Anki2\addons21\1322529746\ankihub_client\ankihub_client.py", line 793, in create_change_note_suggestion
    raise AnkiHubHTTPError(response)

1322529746.ankihub_client.ankihub_client.AnkiHubHTTPError: AnkiHub request error: 400 Bad Request

Sentry link (for developers)

This looks related to this:

Make sure the fields you’re changing are not protected.

They were not. I tried to add a new tag.

The logs show you’re trying to suggest changes to the First Aid, Pixorize, and Additional Resources fields. What is the tag you’re trying to add?