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Topic: 500 Internal server error on Firewall Edit page

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Post #1
openwrt9389
27 Dec 2014, 17:13

In Firewall page in luci, instead of getting the add button, I am getting the below error.

500 Internal Server Error
Sorry, the server encountered an unexpected error.

/usr/lib/lua/luci/dispatcher.lua:448: Failed to execute function dispatcher target for entry '/admin/network/firewall'.
The called action terminated with an exception:
/usr/lib/lua/luci/dispatcher.lua:448: Failed to execute arcombine dispatcher target for entry '/admin/network/firewall/zones'.
The called action terminated with an exception:
/usr/lib/lua/luci/template.lua:104: Failed to execute template 'cbi/map'.
A runtime error occured: /usr/lib/lua/luci/template.lua:104: Failed to execute template 'cbi/tblsection'.
A runtime error occured: /usr/lib/lua/luci/template.lua:104: Failed to execute template 'cbi/firewall_zoneforwards'.
A runtime error occured: /usr/lib/lua/luci/model/firewall.lua:99: bad argument #2 to 'get' (string expected, got nil)
stack traceback:
    [C]: in function 'assert'
    /usr/lib/lua/luci/dispatcher.lua:448: in function 'dispatch'
    /usr/lib/lua/luci/dispatcher.lua:195: in function

Tried un-installing completely by running the following command

opkg remove --autoremove luci

and installing again but no luck

opkg install luci

Screenshot: https://i.imgur.com/0BW3ZPq.png

OpenWRT version: 14.07

Post #2
openwrt9389
27 Dec 2014, 17:23

Fixed the issue.

For anyone else facing the same error, check the below file for any errors.

/etc/config/firewall

In my case there was a empty config zone  section which was causing the 500 internal server error.

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