I modified the configuration file for hostapd.
/var/ipfire/wlanap/config
#VHTCAPS=[MAX-MPDU-3895][SHORT-GI-80][SU-BEAMFORMEE]
#HTCAPS=[MAX-AMSDU-3839][HT40+][SHORT-GI-20][SHORT-GI-40][DSSS_CCK-40]
[root@ipfire ~]# /etc/rc.d/init.d/hostapd status
hostapd is running with Process ID(s) 1815.
After the change, the status of Add-On - Services is displayed correctly.