Hi. You'd need to provide the name of the SID variable in the config file:
PHP Code:
define('PHPDIG_SESSID_REMOVE',true); // remove SIDS from indexed URLS
define('PHPDIG_SESSID_VAR','PHPSESSID'); // name of the SID variable
Not all SID variables are named PHPSESSID so if you already indexed, then you might want to reindex once the SID name is set.