Bagaimana Open Journal Theme membantu memulihkan keamanan, stabilitas, dan visibilitas Google Scholar jurnal Universitas Muhammadiyah Malang setelah berbulan-bulan mengalami serangan dan konten yang tidak diinginkan.
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
OJS 3.5 user search timing out or taking minutes to load? Learn the most likely causes and diagnostic steps from database indexing to PHP configuration and caching strategies for large user bases.
ORCID authentication stopped working after upgrading to OJS 3.5? Learn why the OAuth flow breaks, how to fix the error, and how to properly configure ORCID API credentials post-upgrade.
Is your OJS Plugin Gallery stuck on a loading spinner? Learn how to trace the root cause, remove a corrupted plugin, and restore the Plugin Gallery.
Table of Contents What Happens When an OJS Upgrade Gets Stuck The Three Errors That Keep the Upgrade in a Loop Why Re-Running the Upgrade Makes the Problem Worse The Safe Way to Identify Where the Migration Failed Resuming the Migration From the Failure Point Verifying the Database After a Successful Migration How to Prevent
Introduction If you run an Open Journal Systems (OJS) website, security should never be an afterthought. Journal websites handle submission files, reviewer data, editor communications, and author information: all of which need to stay protected. OJS installations can become targets for automated exploits. In some cases, attackers modify core files like index.php to inject redirect
Introduction If your journal recently upgraded to OJS 3.5 and the user search has become noticeably slow, or stops returning results altogether, the problem is usually not a simple configuration mistake. In many cases, the root cause sits deeper: in how OJS 3.5 handles user-related database queries, especially after an upgrade from an earlier version
Table of Contents OJS Plugin Ecosystem Guide: Best OJS Plugins to Supercharge Your Journal in 2026 Essential OJS Plugins Every Journal Should Install Discoverability and Indexing Plugins Editorial Workflow and Peer Review Plugins Analytics and Reporting Plugins Author Experience and Submission Plugins Security and Compliance Plugins How to Choose and Manage OJS Plugins Effectively OJS
Table of Contents Journal Indexing Guide: How to Index Your Academic Journal in Scopus, DOAJ, and Beyond Why Journal Indexing Matters for Your Academic Publication How to Index Your Journal in DOAJ (Directory of Open Access Journals) How to Apply for Scopus Indexing: A Step-by-Step Guide Web of Science and Other Major Indexing Databases OJS
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Openjournaltheme.com started in 2016 by a passionate team that focused to provide affordable OJS, OMP, OPS, Dspace, Eprints products and services. Our mission to help publishers to be more focus on their content research rather than tackled by many technical OJS issues.
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