Reload problem

could somebody help me…??
i had problem in freepbx.i could not reload after i have change admin password.
this warning appear when i click orrange button.

Reload failed because retrieve_conf encountered an error: 126

exit: 126
sh: /var/lib/asterisk/bin/retrieve_conf: Permission denied

1 error(s) occured, you should view the notification log on the dashboard or main screen to check for more details.

i have check my amportal.conf file and manager file. do you think there is any related file about this problem??

please. ineed some help, tq.