Support » Fixing WordPress » Cannot use output buffering in output

  • Hi,

    My error.log is full of :

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

    This of course gives no clue on whats wrong and where. Is there any way I can troubleshoot further?

    Thanks

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  • Hi @sgurygf,
    This probably means that you have a plugin/theme that also does (some) CSS optimization. Try toggling all plugins to see if that solves the issue and if not briefly switch to a default theme. Once we know what plugin is to blame, we can zoom in on the problem and see if we can fix it.

    Thanks.

Viewing 1 replies (of 1 total)
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