This error occurs when a PHP script runs longer than the allowed time limit, typically 30 seconds by default, and gets forcibly stopped.
Common Triggers
Large file uploads, complex database queries, or bulk imports/exports are common operations that can legitimately exceed a default time limit.
Increasing the Limit
Adjust the max_execution_time value in Plesk's PHP settings for tasks that genuinely need more time.
When It Signals a Bigger Issue
If ordinary page loads are timing out (not just specific heavy operations), that usually points to a performance problem — like an inefficient database query — worth fixing rather than just extending the timeout indefinitely.
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