fix the error on failed login attempt

ot_connect/ext_localconf.php

@@ -28,4 +28,4 @@ $GLOBALS['TYPO3_CONF_VARS']['SVCONF']['auth']['setup']['FE_alwaysAuthUser'] = tr
 $GLOBALS['TYPO3_CONF_VARS']['BE']['showRefreshLoginPopup'] = 1;
 
 $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_userauth.php']['postLoginFailureProcessing'][] =
-    \Opentalent\OtConnect\Hooks\PostLoginFailureProcessingHook::class;
+    \Opentalent\OtConnect\Hooks\PostLoginFailureProcessingHook::class . '->postLoginFailureProcessing';