I have done this:
[root@www ~]# groupmod -g 102 www
groupmod: GID »102« existiert bereits.
[root@www ~]# find / -group 104 -not -path "/proc*" -exec chgrp -h www {} \;
[root@www]# expand-template /etc/httpd/conf/httpd.conf
[root@www]# httpd -t
Syntax OK
[root@www]# systemctl restart httpd-e-smith.service
signal-event post-upgrade
signal-event reboot
When I try to access horde webmail - I got this error in the browser:
A fatal error has occurred
Cannot write to cache directory /var/lib/php/horde/tmp
Details have been logged for the administrator.