Version 4.7.6

system/Login/Handler/OAuth2/Custom.php

@@ -444,7 +444,7 @@ class _Custom extends \IPS\Login\Handler\OAuth2
 			}
 
 			/* Check for any errors */
-			if ( static::getValueFromArray( $response, $this->settings['uid_field'] ) === NULL )
+			if ( $response === NULL OR static::getValueFromArray( $response, $this->settings['uid_field'] ) === NULL )
 			{
 				\IPS\Log::log( print_r( $response, TRUE ), 'oauth_custom' );
 				throw new \IPS\Login\Exception( 'generic_error', \IPS\Login\Exception::INTERNAL_ERROR );