Worth checking what version of PHP you are running, I think the latest version might fix the problem
@zack, pleasure – sometimes the solutions to problems are not always obvious or relating to the software itself!
Zack I believe the issue is not with the plugin directly but a server side issue, upgraded to PHP 5.3.3 and it solved the problem
Hi this is an ongoing issue and prevents users signing in using the signup form.
This error occurs when the form is selected however it does suggest no list selected.