I'm updating a client site to EE 2.9.2 from 2.5.1. Along the way I'm also updating the build of Low's NoSpam extension. Once installed it's throwing the following CP error:

A PHP Error was encountered Severity: Notice Message: Use of undefined constant LOW_NOSPAM_CLASS_NAME - assumed 'LOW_NOSPAM_CLASS_NAME' Filename: libraries/Accessories.php Line Number: 106

I've re-downloaded/installed the files and uninstalled/reinstalled a couple times to no avail...

Any ideas?

  • The latest version of Low NoSpam doesn't have an accessory. Is the acc.low_nospam.php file still there, or is it deleted?
    – Low
    Feb 20, 2015 at 7:50
  • Yep - that was it. Thanks Low - did I miss a note about that somewhere? Feb 20, 2015 at 12:31
  • Not really, but when you update an add-on, be sure to delete the old files, instead of replacing the package, which could actually merge the old and new files.
    – Low
    Feb 20, 2015 at 12:35

1 Answer 1


The latest version of Low NoSpam doesn't have an accessory. Make sure the acc.low_nospam.php file is not present in the add-on package.

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