RN516 Firmware update error - stuck at FW 6.6.0 - fwbroker.cgi error

Hi,

My RN516 is stuck at FW 6.6.0

When I try to check for updates nothing happen.

When I try to Manually install a new firmware I got the Error message : unrecognized server error.

When I connect via SSH and do a Journalctrl, i can spot a fwbroker.cgi error

Jul 24 19:32:27 NASRN516 apache2[4340]: [error] [client 192.168.1.100] Premature end of script headers: fwbroker.cgi, referer: https://192.168.1.170/admin/
Jul 24 19:32:27 NASRN516 apache_access[4222]: 192.168.1.100 "POST /fwbroker HTTP/1.1" 500
Jul 24 19:32:46 NASRN516 apache_access[4222]: 192.168.1.100 "POST /dbbroker HTTP/1.1" 200

Can anyone help me ?

Thanks.

PS :  It seems that I got a lot of permissions problem too

Jul 24 19:28:23 NASRN516 systemd[1]: Configuration file /lib/systemd/system/leafp2p.service is marked executable. Please remove executable permission bits. Proceeding anyway.
Jul 24 19:28:23 NASRN516 systemd[1]: Configuration file /lib/systemd/system/readytivo.service is marked executable. Please remove executable permission bits. Proceeding anyway.
Jul 24 19:28:23 NASRN516 systemd[1]: Configuration file /lib/systemd/system/readytivo.service is marked executable. Please remove executable permission bits. Proceeding anyway.
Jul 24 19:28:23 NASRN516 systemd[1]: Configuration file /lib/systemd/system/readytivo.service is marked executable. Please remove executable permission bits. Proceeding anyway.
Jul 24 19:28:23 NASRN516 systemd[1]: Configuration file /lib/systemd/system/leafp2p.service is marked executable. Please remove executable permission bits. Proceeding anyway.
Jul 24 19:28:23 NASRN516 systemd[1]: Configuration file /lib/systemd/system/fvapp-loganalyzerr6.service is marked executable. Please remove executable permission bits. Proceeding anyway.
Jul 24 19:28:23 NASRN516 systemd[1]: Configuration file /lib/systemd/system/fvapp-loganalyzerr6.service is marked executable. Please remove executable permission bits. Proceeding anyway.
Jul 24 19:28:23 NASRN516 systemd[1]: Configuration file /lib/systemd/system/fvapp-loganalyzerr6.service is marked executable. Please remove executable permission bits. Proceeding anyway.
Jul 24 19:28:23 NASRN516 systemd[1]: [/lib/systemd/system/fvapp-plexmediaserver.service:9] Invalid escape sequences in line, correcting: "/bin/sh -c '/apps/plexmediaserver/Binaries/Plex\ Media
\ Server'"
Jul 24 19:28:23 NASRN516 systemd[1]: Configuration file /lib/systemd/system/fvapp-subsonic.service is marked executable. Please remove executable permission bits. Proceeding anyway.
Jul 24 19:28:23 NASRN516 systemd[1]: Configuration file /lib/systemd/system/fvapp-subsonic.service is marked executable. Please remove executable permission bits. Proceeding anyway.
Jul 24 19:28:23 NASRN516 systemd[1]: Configuration file /lib/systemd/system/fvapp-subsonic.service is marked executable. Please remove executable permission bits. Proceeding anyway.
Jul 24 19:32:12 NASRN516 systemd[1]: Configuration file /lib/systemd/system/leafp2p.service is marked executable. Please remove executable permission bits. Proceeding anyway.
Jul 24 19:32:12 NASRN516 systemd[1]: Configuration file /lib/systemd/system/readytivo.service is marked executable. Please remove executable permission bits. Proceeding anywa
Jul 24 19:32:12 NASRN516 systemd[1]: Configuration file /lib/systemd/system/readytivo.service is marked executable. Please remove executable permission bits. Proceeding anywa
Jul 24 19:32:12 NASRN516 systemd[1]: Configuration file /lib/systemd/system/readytivo.service is marked executable. Please remove executable permission bits. Proceeding anywa
Jul 24 19:32:12 NASRN516 systemd[1]: Configuration file /lib/systemd/system/leafp2p.service is marked executable. Please remove executable permission bits. Proceeding anyway