thanks
i found it and changed to :
# Plesk apache
check process plesk_apache
with pidfile "/var/run/sw-cp-server.pid"
start = "<plesk_apache_start>"
stop = "<plesk_apache_stop>"
if failed host localhost port 8443 type tcpssl protocol http with timeout <plesk_apache_connection_timeout> seconds then restart
if <plesk_apache_timeout_restarts> restarts within <plesk_apache_timeout_cycles> cycles then timeout
every <plesk_apache_cycles> cycles
mode <plesk_apache_mode>
when i try
/usr/local/psa/etc/modules/watchdog/wd --regen-all
i have message, cant find the file
and when i try to start watchdog in plesk, i still get same error
thanks for your help