DB Error: Commands out of sync; you can't run this command now open journal source

[ctgraham]

@teog

there’s a bunch of new Fatal Errors in log file:

PHP Fatal error: Class 'ADORecordSet_empty' not found in /journal/lib/pkp/controllers/page/PageHandler.inc.php on line 32

ojs2: DB Error: Commands out of sync; you can't run this command now

PHP Fatal error: Unknown: Cannot use output buffering in output buffering display handlers in Unknown on line 0

Strangely though, both the site’s backend and frontend work normally despite all these Fatal Errors - how can that be?!

This sounds a lot like a database server issue which is cascading down into PHP. The backend and frontend functionality may appear ok if these errors are only causing failed AJAX calls which aren’t directly affecting the UI. Presumably, a PHP Fatal will result in a HTTP 500 error. If you are comfortable using the browser’s Web Inspector, you can see exactly which calls are failing.