500 internal server error phalcon apache2 solution

#phalcon apache2 500 internal server error - How to solve
#check phalcon
php -i | grep phalcon
# it's done
#check mod_rewrite
php -i | grep rewrite
#it's had
#check apache error
tail /var/log/apache2/error.log
a2enmod headers
service apache2 restart
#It's done
#Thanks watching