lb_postrender_handler Output Buffers Error

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This topic contains 3 replies, has 2 voices, and was last updated by  John Dodson 1 year, 6 months ago.

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  • #1363

    John Dodson
    Member

    Hi,

    Great plugin and I’ve used it on a couple of other sites with great success.  This site (http://openoceancompany.com)  though gets an error message when we go to the settings.  We have tried fixing this ourselves by turning off all other plugins and also changing the theme to twenty-fifteen.  Still the error message remains and we cannot run a full or even partial anti-malware scan.

    Here is the error message:

    Another Plugin or Theme is using ‘lb_postrender_handler’ to handle output buffers.
    This prevents actively outputing the buffer on-the-fly and will severely degrade the performance of this (and many other) Plugins.
    Consider disabling caching and compression plugins (at least during the scanning process).

    We can provide you with admin login if you want to have a look or if you can tell us what the problem is we can attempt to fix it ourselves.  The site is working but is sometimes slow.

    We recently fixed another issue where a link in the footer was placed directing users to a porn site.  I mention that in case it is related to the above issue.

    We have donated to your plugin and hope you can provide assistance.

    Any help would be appreciated.

    John S. Dodson
    Brand Manager
    Open Ocean Company
    —————————————————–

    http://www.openoceancompany.com

    #1364

    John Dodson
    Member

    UPDATE:

    On another one of our sites (http://brothersinslaw.com) we now get a similar message but it references a different output buffer.

    Another Plugin or Theme is using ‘ct_inject_nocache_script‘ to handle output buffers.
    This prevents actively outputing the buffer on-the-fly and will severely degrade the performance of this (and many other) Plugins.
    Consider disabling caching and compression plugins (at least during the scanning process).

    Any help or insight on these similar issues would be appreciated.

    #1370

    Anti-Malware Admin
    Key Master

    That kind of code is usually in a plugin or theme. Try deactivating plugins until you don’t see that message any more. If that doesn’t work try downloading a totally new theme and activate it to see if that gets rid of the message. If neither of those option affects the output buffer message then you could also get the Core Files definition and see it that files any WP Core files that have been modified.

    #1371

    John Dodson
    Member

    Thanks for the follow up and suggestions.  I tried all three of your ideas to no avail.  But while uploading the core files to my server I noticed a suspicious folder called “libs”.

    In the “libs” folder were 3 files, another folder and another file within. I made a backup of the folder and then deleted it from the server.  That did it!  I was able to do a complete scan and find 3 threats.

    I’ll email you a zip file of the “libs” folder so you can examine.  I don’t know anything about the contents other than they are text files full of gibberish.

    Thanks again for your help!

    John S. Dodson
    Brand Manager
    Open Ocean Company
    —————————————————–

    http://www.openoceancompany.com

     

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