phpCAS error: Causal\IgLdapSsoAuth\CASV22\CAS::client(): Causal\IgLdapSsoAuth\CASV22\CAS::client() has already been called (at /var/www/prod-opus/opus/typo3conf/ext/ig_ldap_sso_auth/pi1/class.tx_igldapssoauth_pi1.php:79) in /var/www/prod-opus/opus/typo3conf/ext/ig_ldap_sso_auth/pi1/class.tx_igldapssoauth_pi1.php on line 79