I too am getting the error, many more times than the log file shows. There’s nothing in the debug content at the bottom of the .html. However I’m getting many more notifications than errors showing in the log. And all of my errors are “Get[‘f’] param invalid: “”. I’m running 3.1.5 (or whatever is right before 3.2).
[Fri, 01 Jul 2011 01:41:41 +0000] [/wp-content/w3tc/min/index.php?file=656ab810.9f2d93.js] [https://leadchangegroup.com/professional-intimacy-secret-sustainable-leaders/] GET[‘f’] param invalid: “”
[Fri, 01 Jul 2011 01:42:57 +0000] [/wp-content/w3tc/min/index.php?file=656ab810.9f2d93.js] [https://leadchangegroup.com/the-art-of-disruption/] GET[‘f’] param invalid: “”
[Fri, 01 Jul 2011 01:46:01 +0000] [/wp-content/w3tc/min/index.php?file=656ab810.9f2d93.js] [https://leadchangegroup.com/the-art-of-disruption/] GET[‘f’] param invalid: “”
[Wed, 06 Jul 2011 22:07:02 +0000] [/wp-content/w3tc/min/index.php?file=a27498db.a25d8e.js] [https://leadchangegroup.com/blog/] GET[‘f’] param invalid: “”
[Wed, 06 Jul 2011 22:07:27 +0000] [/wp-content/w3tc/min/index.php?file=a27498db.a25d8e.js] [https://leadchangegroup.com/author/heatherecoleman/] GET[‘f’] param invalid: “”
[Wed, 06 Jul 2011 22:07:30 +0000] [/wp-content/w3tc/min/index.php?file=656ab810.9f2d93.js] [https://leadchangegroup.com/receiving-input-from-dilbert/] GET[‘f’] param invalid: “”
[Wed, 06 Jul 2011 22:07:37 +0000] [/wp-content/w3tc/min/index.php?file=12aea2cc.8fe080.css] [https://leadchangegroup.com/receiving-input-from-dilbert/] GET[‘f’] param invalid: “”
[Wed, 06 Jul 2011 22:08:07 +0000] [/wp-content/w3tc/min/index.php?file=656ab810.9f2d93.js] [https://leadchangegroup.com/receiving-input-from-dilbert/] GET[‘f’] param invalid: “”