メッセージ Warning at /admin/postfixadmin/domain/hdknr.deb/ Incorrect string value: '\xE5\xA4\x89\xE6\x9B\xB4...' for column 'change_message' at row 1 Request Method: POST Request URL: http://hdknr.deb:8000/admin/postfixadmin/domain/hdknr.deb/ Exception Type: Warning Exception Value: Incorrect string value: '\xE5\xA4\x89\xE6\x9B\xB4...' for column 'change_message' at row 1 Exception Location: /usr/lib/