FreePBX 2.8.0.4 can not Delete Route problem

When I do delete the Route it reply below massage.

FATAL ERROR
function: core_routing_getroutenames has been deprecated and removed
Trace Back
Array
(
[0] => Array
(
[file] => /var/www/html/admin/modules/core/functions.inc.php
[line] => 5395
[function] => die_freepbx
[args] => Array
(
[0] => function: core_routing_getroutenames has been deprecated and removed
)

    )

[1] => Array
    (
        [file] => /var/www/html/admin/modules/customcontexts/functions.inc.php
        [line] => 149
        [function] => core_routing_getroutenames
        [args] => Array
            (
            )

    )

[2] => Array
    (
        [file] => /var/www/html/admin/modules/customcontexts/functions.inc.php
        [line] => 108
        [function] => customcontexts_routing_prioritize
        [args] => Array
            (
                [0] => delroute
                [1] => 2
            )

    )

[3] => Array
    (
        [file] => /var/www/html/admin/functions.inc.php
        [line] => 698
        [function] => customcontexts_hookProcess_core
        [args] => Array
            (
                [0] => 2
                [1] => Array
                    (
                        [display] => routing
                        [extdisplay] => 2
                        [action] => delroute
                        [ui-tabs-1] => 0
                        [setup-e3afed0047b08059d0fada10f400c1e5] => expanded
                        [setup-972e73b7a882d0802a4e3a16946a2f94] => expanded
                        [setup-7eec029e6d0d83dcd40bc218cbc04e85] => expanded
                        [setup-fcc42e3dc88422b722c17e20c26a39a1] => expanded
                        [setup-b988b61dd9ca7cbbea7d68b6b24d749f] => expanded
                        [tool-e3afed0047b08059d0fada10f400c1e5] => expanded
                        [tool-db5eb84117d06047c97c9a0191b5fffe] => expanded
                        [tool-afde5a73d112b230adb0e3b203265409] => expanded
                        [tool-b988b61dd9ca7cbbea7d68b6b24d749f] => expanded
                        [elastixSession] => 6gkljkhqicm23n2t1eampin4s5
                        [PHPSESSID] => ri1vi9ohi50hjb8oar7vca4tq1
                    )

            )

    )

[4] => Array
    (
        [file] => /var/www/html/admin/config.php
        [line] => 330
        [function] => process_hooks
        [class] => moduleHook
        [object] => moduleHook Object
            (
                [hookHtml] => 
    
      PIN SetOptional: Select a PIN set to use. If using this option, leave the Route Password field blank.:
      
         None
				
			
		
                [arrHooks] => Array
                    (
                        [0] => languages
                        [1] => dahdiconfig
                        [2] => pinsets
                        [3] => cidlookup
                        [4] => customcontexts
                        [5] => fax
                    )

            )

        [type] => ->
        [args] => Array
            (
                [0] => 2
                [1] => core
                [2] => routing
                [3] => Array
                    (
                        [display] => routing
                        [extdisplay] => 2
                        [action] => delroute
                        [ui-tabs-1] => 0
                        [setup-e3afed0047b08059d0fada10f400c1e5] => expanded
                        [setup-972e73b7a882d0802a4e3a16946a2f94] => expanded
                        [setup-7eec029e6d0d83dcd40bc218cbc04e85] => expanded
                        [setup-fcc42e3dc88422b722c17e20c26a39a1] => expanded
                        [setup-b988b61dd9ca7cbbea7d68b6b24d749f] => expanded
                        [tool-e3afed0047b08059d0fada10f400c1e5] => expanded
                        [tool-db5eb84117d06047c97c9a0191b5fffe] => expanded
                        [tool-afde5a73d112b230adb0e3b203265409] => expanded
                        [tool-b988b61dd9ca7cbbea7d68b6b24d749f] => expanded
                        [elastixSession] => 6gkljkhqicm23n2t1eampin4s5
                        [PHPSESSID] => ri1vi9ohi50hjb8oar7vca4tq1
                    )

            )

    )

)

upgrade your custom contexts module, it is not compatible with the current version of FreePBX.