PHP Warning: Undefined array key "DAEMON_SLEEP" in /var/www/html/playsms/playsms-1.4.7/bin/playsmsd on line 309 Unable to start playsmsd

PHP Warning: Undefined array key “DAEMON_SLEEP” in /var/www/html/playsms/playsms-1.4.7/bin/playsmsd on line 309
Unable to start playsmsd