Thanks Colin,
Here is the complete log . And this error is for each of the APs.
May 18 19:17:37 sapd[1749]: <326268> <ERRS> |AP IDBDG-LA010@172.31.248.142 sapd| An internal system error has occurred at file channel.c function ch_check line 1410 error default_ch_cnt 0 .
May 18 19:17:37 sapd[1799]: <326268> <ERRS> |AP IDBDG-LA006@172.31.248.141 sapd| An internal system error has occurred at file channel.c function ch_check line 1410 error default_ch_cnt 0 .
May 18 19:17:38 sapd[1749]: <326268> <ERRS> |AP IDBDG-LA010@172.31.248.142 sapd| An internal system error has occurred at file channel.c function ch_check line 1410 error default_ch_cnt 0 .
May 18 19:17:38 sapd[1773]: <326268> <ERRS> |AP IDBDG-LA004@172.31.248.134 sapd| An internal system error has occurred at file channel.c function ch_check line 1410 error default_ch_cnt 0 .
Also before these logs we received a lot of errors regarding interference on multiple channels
May 18 19:15:56 wms[3493]: <126005> <WARN> |wms| |ids| Interfering AP: The system classified an access point (BSSID <Radio MAC> and SSID OPPO F1f on CHANNEL 6) as interfering. Additional Info: Detector-AP-Name:IDBDG-LA011; Detector-AP-MAC:<MAC>; Detector-AP-Radio:2.
May 18 19:16:01 wms[3493]: <126005> <WARN> |wms| |ids| Interfering AP: The system classified an access point (BSSID <Radio MAC> and SSID kuto1 on CHANNEL 1) as interfering. Additional Info: Detector-AP-Name:IDBDG-LA010; Detector-AP-MAC:<MAC>; Detector-AP-Radio:2.
May 18 19:17:23 wms[3493]: <126005> <WARN> |wms| |ids| Interfering AP: The system classified an access point (BSSID <Radio MAC> and SSID the abinda's on CHANNEL 3) as interfering. Additional Info: Detector-AP-Name:IDBDG-LA010; Detector-AP-MAC:<MAC>; Detector-AP-Radio:2.
May 18 19:17:33 wms[3493]: <126005> <WARN> |wms| |ids| Interfering AP: The system classified an access point (BSSID <Radio MAC> and SSID Andromax-M2Y-F852 on CHANNEL 11) as interfering. Additional Info: Detector-AP-Name:IDBDG-LA006; Detector-AP-MAC:<MAC>; Detector-AP-Radio:2.
Regards
PRD