Error found on Etherlite EL 160 DigiBox

Can anybody help me figuring what causes this error?

root@ftlcebu-digi:/etc/conserver# tail -150 /var/log/conserver/server.log | grep denied
[Tue Feb 25 01:25:28 2014] conserver (4154): ERROR: [curl15] open(/dev/tty_dgrp_aa_14): Permission denied: forcing down
[Tue Feb 25 01:25:28 2014] conserver (4154): ERROR: [curl14] open(/dev/tty_dgrp_aa_13): Permission denied: forcing down
[Tue Feb 25 01:25:28 2014] conserver (4154): ERROR: [curl13] open(/dev/tty_dgrp_aa_12): Permission denied: forcing down
[Tue Feb 25 01:25:28 2014] conserver (4154): ERROR: [curl12] open(/dev/tty_dgrp_aa_11): Permission denied: forcing down
[Tue Feb 25 01:25:28 2014] conserver (4154): ERROR: [curl11] open(/dev/tty_dgrp_aa_10): Permission denied: forcing down
[Tue Feb 25 01:25:28 2014] conserver (4154): ERROR: [curl10] open(/dev/tty_dgrp_aa_9): Permission denied: forcing down
[Tue Feb 25 01:25:28 2014] conserver (4154): ERROR: [curl09] open(/dev/tty_dgrp_aa_8): Permission denied: forcing down
[Tue Feb 25 01:25:28 2014] conserver (4154): ERROR: [curl08] open(/dev/tty_dgrp_aa_7): Permission denied: forcing down
[Tue Feb 25 01:25:28 2014] conserver (4154): ERROR: [curl07] open(/dev/tty_dgrp_aa_6): Permission denied: forcing down
[Tue Feb 25 01:25:28 2014] conserver (4154): ERROR: [curl06] open(/dev/tty_dgrp_aa_5): Permission denied: forcing down
[Tue Feb 25 01:25:28 2014] conserver (4154): ERROR: [curl05] open(/dev/tty_dgrp_aa_4): Permission denied: forcing down
[Tue Feb 25 01:25:28 2014] conserver (4154): ERROR: [curl04] open(/dev/tty_dgrp_aa_3): Permission denied: forcing down
[Tue Feb 25 01:25:28 2014] conserver (4154): ERROR: [curl03] open(/dev/tty_dgrp_aa_2): Permission denied: forcing down
[Tue Feb 25 01:25:28 2014] conserver (4154): ERROR: [curl02] open(/dev/tty_dgrp_aa_1): Permission denied: forcing down
[Tue Feb 25 01:25:28 2014] conserver (4154): ERROR: [curl01] open(/dev/tty_dgrp_aa_0): Permission denied: forcing down
[Tue Feb 25 01:25:29 2014] conserver (4155): ERROR: [bench15] open(/dev/tty_dgrp_ab_14): Permission denied: forcing down
[Tue Feb 25 01:25:29 2014] conserver (4155): ERROR: [bench14] open(/dev/tty_dgrp_ab_13): Permission denied: forcing down
[Tue Feb 25 01:25:29 2014] conserver (4155): ERROR: [bench13] open(/dev/tty_dgrp_ab_12): Permission denied: forcing down
[Tue Feb 25 01:25:29 2014] conserver (4155): ERROR: [bench12] open(/dev/tty_dgrp_ab_11): Permission denied: forcing down
[Tue Feb 25 01:25:29 2014] conserver (4155): ERROR: [bench11] open(/dev/tty_dgrp_ab_10): Permission denied: forcing down
[Tue Feb 25 01:25:29 2014] conserver (4155): ERROR: [bench10] open(/dev/tty_dgrp_ab_9): Permission denied: forcing down
[Tue Feb 25 01:25:29 2014] conserver (4155): ERROR: [bench09] open(/dev/tty_dgrp_ab_8): Permission denied: forcing down
[Tue Feb 25 01:25:29 2014] conserver (4155): ERROR: [bench08] open(/dev/tty_dgrp_ab_7): Permission denied: forcing down
[Tue Feb 25 01:25:29 2014] conserver (4155): ERROR: [bench07] open(/dev/tty_dgrp_ab_6): Permission denied: forcing down
[Tue Feb 25 01:25:29 2014] conserver (4155): ERROR: [bench06] open(/dev/tty_dgrp_ab_5): Permission denied: forcing down
[Tue Feb 25 01:25:29 2014] conserver (4155): ERROR: [bench05] open(/dev/tty_dgrp_ab_4): Permission denied: forcing down
[Tue Feb 25 01:25:29 2014] conserver (4155): ERROR: [bench04] open(/dev/tty_dgrp_ab_3): Permission denied: forcing down
[Tue Feb 25 01:25:29 2014] conserver (4155): ERROR: [bench03] open(/dev/tty_dgrp_ab_2): Permission denied: forcing down
[Tue Feb 25 01:25:29 2014] conserver (4155): ERROR: [bench02] open(/dev/tty_dgrp_ab_1): Permission denied: forcing down
[Tue Feb 25 01:25:29 2014] conserver (4155): ERROR: [bench01] open(/dev/tty_dgrp_ab_0): Permission denied: forcing down
[Tue Feb 25 01:25:29 2014] conserver (4155): ERROR: [curl16] open(/dev/tty_dgrp_aa_15): Permission denied: forcing down
[Tue Feb 25 01:25:30 2014] conserver (4156): ERROR: [bench16] open(/dev/tty_dgrp_ab_15): Permission denied: forcing down
[Tue Feb 25 01:52:42 2014] conserver (4769): ERROR: [curl15] open(/dev/ttyaa14): Permission denied: forcing down
[Tue Feb 25 01:52:42 2014] conserver (4769): ERROR: [curl14] open(/dev/ttyaa13): Permission denied: forcing down
[Tue Feb 25 01:52:42 2014] conserver (4769): ERROR: [curl13] open(/dev/ttyaa12): Permission denied: forcing down
[Tue Feb 25 01:52:42 2014] conserver (4769): ERROR: [curl12] open(/dev/ttyaa11): Permission denied: forcing down
[Tue Feb 25 01:52:42 2014] conserver (4769): ERROR: [curl11] open(/dev/ttyaa10): Permission denied: forcing down
[Tue Feb 25 01:52:43 2014] conserver (4770): ERROR: [bench15] open(/dev/ttyab14): Permission denied: forcing down
[Tue Feb 25 01:52:43 2014] conserver (4770): ERROR: [bench14] open(/dev/ttyab13): Permission denied: forcing down
[Tue Feb 25 01:52:43 2014] conserver (4770): ERROR: [bench13] open(/dev/ttyab12): Permission denied: forcing down
[Tue Feb 25 01:52:43 2014] conserver (4770): ERROR: [bench12] open(/dev/ttyab11): Permission denied: forcing down
[Tue Feb 25 01:52:43 2014] conserver (4770): ERROR: [bench11] open(/dev/ttyab10): Permission denied: forcing down
[Tue Feb 25 01:52:43 2014] conserver (4770): ERROR: [curl16] open(/dev/ttyaa15): Permission denied: forcing down
[Tue Feb 25 01:52:43 2014] conserver (4771): ERROR: [bench16] open(/dev/ttyab15): Permission denied: forcing down

Thanks a lot!

Looks like a device permission error. Try checking the ownership on the devices to ensure curl and bench have permissions.