OJS Email Not Sending to Reviewers: Step-by-Step Troubleshooting Guide
Introduction Is your OJS website failing to send email notifications to reviewers? This can stall the entire peer review process. When invitation and reminder emails never reach reviewers, reviews slow down. Reviewers get confused, and the editorial team grows frustrated. This issue shows up in different ways. Sometimes you see a loading spinner that never
OJS Upgrade Services: A Journal Manager’s Guide to Safe Migration Without Downtime
OJS Upgrade Services: A Journal Manager’s Guide to Safe Migration Without Downtime Running an academic journal on Open Journal Systems (OJS) is one of the smartest decisions a publisher can make. OJS gives publishers a free, open-source platform that more than 10,000 journals worldwide trust. However, like any software, OJS needs regular upgrades to stay
Recuperación de Revistas UMM que Desaparecieron de Google Scholar
Cómo Open Journal Theme ayudó a restaurar la seguridad, estabilidad y visibilidad en Google Scholar de las revistas de Universitas Muhammadiyah Malang tras
How to Fix OJS HTTP 500 Error: Duplicate Entry for sessions_pkey
When your OJS journal suddenly throws an HTTP 500 error and the Apache error log shows Duplicate entry for key ‘sessions_pkey’, the entire site — homepage, submissions, admin dashboard — can go offline. This error has been reported on OJS versions 3.3.0 through 3.4.0, and in some cases even after following the standard fixes, the






