[syslog-ng] error messages in start syslog-ng

Hi All, I made some specific configurations in my syslog-ng.conf file, and when I tried to restart syslog-ng services, I got those messages: CONSOLE_LOG_LEVEL is of unaccepted value. KERNEL_RINGBUF_SIZE is of unaccepted value. Does anybody knows or has some tip about this message ? Tks in advance Gustavo Mendes de Carvalho gmcarvalho@gmail.com