To our valued clients,

We would like to inform you that our online systems, Open Journal System (OJS) and PNU Online Commons (PNU-OC), have been migrated to an updated version that supports updated technologies. Consequently, technical difficulties such as uploading of submissions to three journals, The Normal Lights, APHERJ, and ASTEN, as well as viewing uploaded materials at PNU-OC and alike may be experienced during this time. Our office has been constantly communicating with the hosting service provider to expedite the troubleshooting.

We sincerely apologize for any inconvenience caused.

If you have any questions, kindly contact us through our official email at

Thank you for your understanding.