Upgraded to simplesamlphp-1.14.0, can't do a federated login

I upgraded simplesamlphp from 1.13.2 to 1.14.0. When I go to test configured authentication sources in simplesaml, I get the following error:
SimpleSAML_Error_NoState: NOSTATE
Backtrace:
2 C:\Program Files (x86)\php\v5.6.17\simplesamlphp-1.14.0\lib\SimpleSAML\Auth\State.php:263 (SimpleSAML_Auth_State::loadState)
1 C:\Program Files (x86)\php\v5.6.17\simplesamlphp-1.14.0\modules\saml\www\sp\saml2-acs.php:78 (require)
0 C:\Program Files (x86)\php\v5.6.17\simplesamlphp-1.14.0\www\module.php:127 (N/A)

I have Drupal installed on a Windows 2012 R2 Server with IIS, and using SQL server for the database.

Any help would be appreciated.

Thanks.
Cyndi