| FileUploadException | Exception: File upload went wrong |
| MailingException | Exception during sending of an e‑mail. |
| MaxFilesizeException | Exception: File exceeds size maximum. |
| QuesttypeAgentNotFoundException | Exception: QuesttypeAgent not found. |
| QuesttypeAgentNotValidException | Exception: QuesttypeAgent not valid. |
| QuesttypeControllerNotFoundException | Exception: QuesttypeController not found. |
| QuesttypeControllerNotValidException | Exception: QuesttypeController not valid. |
| QuesttypeModelNotFoundException | Exception: QuesttypeModel not found. |
| QuesttypeModelNotValidException | Exception: QuesttypeModel not valid. |
| SubmissionNotValidException | Exception: Character submission not valid. |
| WrongFiletypeException | Exception: File has wrong filetype. |