Outdated, uses Deprecated functions

PHP Notice: Use of undefined constant thickbox_init – assumed ‘thickbox_init’ in ACCOUNTFOLDER\wwwroot\wp-content\plugins\thickbox\thickbox.php on line 185 // should be string not constant // add_action(‘init’, thickbox_init); add_action(‘init’, ‘thickbox_init’); PHP Notice: load_plugin_textdomain was called with an argument that is deprecated since version 2.7 with no alternative available. in ACCOUNTFOLDER\wwwroot\wp-includes\functions.php on line 3510 PHP Notice: Array ( [0] => Array ( [file] => ACCOUNTFOLDER\wwwroot\wp-includes\l10n.php [line] => 598 [function] => _deprecated_argument [args] => Array ( [0] => load_plugin_textdomain [1] => 2.7 ) ) [1] => Array ( [file] => ACCOUNTFOLDER\wwwroot\wp-content\plugins\thickbox\thickbox.php [line] => 171 [function] => load_plugin_textdomain [args] => Array ( [0] => thickbox [1] => wp-content/plugins/thickbox/messages ) ) [2] => Array ( [function] => thickbox_init [args] => Array ( [0] => ) ) [3] => Array ( [file] => ACCOUNTFOLDER\wwwroot\wp-includes\plugin.php [line] => 496 [fun in ACCOUNTFOLDER\wwwroot\wp-includes\functions.php on line 3517 https://codex.wordpress.org/Function_Reference/load_plugin_textdomain shows the proper usage of the function line 171 of thickbox.php should be: load_plugin_textdomain(‘thickbox’, ”, ‘wp-content/plugins/thickbox/messages’);