Running out of memory.
THE ERROR
Allowed memory size exhausted, naming the limit and the file.
WHAT IT MEANS
One script tried to use more memory than permitted.
TWO POSSIBLE CAUSES
The limit is genuinely too low for what you are doing Something is consuming memory it should not
WHICH IS IT
If it happens during a large import or backup, the limit may genuinely need raising.
If it happens on an ordinary page load, something is wrong.
WHAT CONSUMES MEMORY UNEXPECTEDLY
Loading an entire large dataset at once An unbounded query A plugin processing large images An infinite loop
THE FILE NAMED IN THE ERROR
Identifies the responsible component.
If the same plugin appears repeatedly, replace it.
WHAT TO DO
Raise the limit modestly, if the operation is legitimate Investigate, if it happens on ordinary pages
WHAT NOT TO DO
Keep raising the limit indefinitely.
