404 and action_err_ns Errors

Code: 404 Not Found
{"success":false,"message":"action_err_ns","total":0,"data":[],"object":{"code":404}}

action_err_ns

2016-03-07 14:18:27] (ERROR @ /index.php) Could not prepare context: template-us-en
[2016-03-07 14:18:30] (ERROR @ /index.php) Could not prepare context: template-us-en
[2016-03-08 13:49:32] (ERROR @ /connectors/lang.js.php) Error caching lexicon topic lexicon/en/core/resource
[2016-03-16 10:51:00] (ERROR @ /index.php) Error 42S22 executing statement: 
Array
(
    [0] => 42S22
    [1] => 1054
    [2] => Unknown column 'modRedirect.context_key' in 'field list'
)

[2016-03-16 10:51:01] (ERROR @ /index.php) Error 42S22 executing statement: 
Array
(
    [0] => 42S22
    [1] => 1054
    [2] => Unknown column 'modRedirect.context_key' in 'field list'
)

[2016-03-16 10:51:01] (ERROR @ /index.php) Error 42S22 executing statement: 
Array
(
    [0] => 42S22
    [1] => 1054
    [2] => Unknown column 'modRedirect.context_key' in 'field list'
)

[2016-03-16 10:51:01] (ERROR @ /index.php) Error 42S22 executing statement: 
Array
(
    [0] => 42S22
    [1] => 1054
    [2] => Unknown column 'modRedirect.context_key' in 'field list'
)

[2016-03-16 10:53:33] (ERROR @ /index.php) Error 42S22 executing statement: 
Array
(
    [0] => 42S22
    [1] => 1054
    [2] => Unknown column 'modRedirect.context_key' in 'field list'
)

[2016-03-16 10:53:49] (ERROR @ /index.php) Error 42S22 executing statement: 
Array
(
    [0] => 42S22
    [1] => 1054
    [2] => Unknown column 'modRedirect.context_key' in 'field list'
)

[2016-03-16 10:53:49] (ERROR @ /index.php) Error 42S22 executing statement: 
Array
(
    [0] => 42S22
    [1] => 1054
    [2] => Unknown column 'modRedirect.context_key' in 'field list'
)

[2016-03-16 15:00:22] (ERROR @ /manager/index.php) Could not cache context settings for mgr.
[2016-03-16 15:00:25] (ERROR @ /connectors/modx.config.js.php) Error caching lexicon topic lexicon/en/core/resource