Describe the issue or problem
OJS 3.5.0-3 statistics stopped recording usage after 24 January 2026.
Before this date, abstract views and file downloads were recorded correctly.
After 24 Jan:
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No new usage events are recorded
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Statistics → Articles page shows only 2 articles (instead of 5 published articles)
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Dashboard usage graph is not updating
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Downloads and sharing are happening but not reflected in statistics
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UsageEvent plugin does not appear in Generic Plugins list
Expected behavior:
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Usage statistics should continue recording normally
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All published articles should appear in statistics
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UsageEvent plugin should be detected and loaded properly
Steps I took leading up to the issue
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Accidentally deleted
/plugins/generic/usageEvent/folder -
Re-uploaded the exact
usageEventplugin from OJS 3.5.0-3 full package -
Added missing
index.phpfile in plugin folder -
Cleared cache (
cache/t_compile,cache/_db) -
Verified file permissions (755 folders, 644 files)
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Fixed cron job path to:
php /home/USERNAME/IRJIST/tools/runScheduledTasks.php -
Cron now runs without path error
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scheduledTaskLogsfolder exists and updates
However:
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Plugin does not appear in Settings → Website → Plugins → Generic Plugins
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No new statistics are being recorded
Application
OJS 3.5.0-3
Hosted on Hostinger shared hosting
Cron configured via Hostinger cron panel
Additional Information
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Statistics worked properly before deleting usageEvent plugin
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No visible PHP errors on frontend
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usageStatsdirectory exists -
scheduledTaskLogsdirectory exists -
Only usage tracking stopped after plugin deletion