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Array
(
    [type] => 1024
    [message] => register_sidebar was called incorrectly. No id was set in the arguments array for the "Footer" sidebar. Defaulting to "sidebar-2". Manually set the id to "sidebar-2" to silence this notice and keep existing sidebar content. Please see Debugging in WordPress for more information. (This message was added in version 4.2.0.)
    [file] => /homepages/33/d464231018/htdocs/wordpress/wp-includes/functions.php
    [line] => 4246
)