fixed to show error message and remove unnecessary characters on notification center (PC) (fixes #2767)
fixed to show error message and remove unnecessary characters on notification center (PC) (fixes #2767)

openpne/OpenPNE3,openpne/OpenPNE3,tejima/OP3PKG,nise-nabe/ppcon-sns,nise-nabe/ppcon-sns,openpne/OpenPNE3,tejima/OP3PKG,openpne/OpenPNE3