Initialization Error

Array
(
    [callback] => Array
        (
            [0] => CRM_Core_Error
            [1] => simpleHandler
        )

    [code] => -24
    [message] => DB Error: connect failed
    [mode] => 16
    [debug_info] =>  [nativecode=Lost connection to MySQL server at 'reading initial communication packet', system error: 111]
    [type] => DB_Error
    [user_info] =>  [nativecode=Lost connection to MySQL server at 'reading initial communication packet', system error: 111]
    [to_string] => [db_error: message="DB Error: connect failed" code=-24 mode=callback callback=CRM_Core_Error::simpleHandler prefix="" info=" [nativecode=Lost connection to MySQL server at 'reading initial communication packet', system error: 111]"]
)

backTrace

/home/content/i/a/g/iagtadmin/html/iagtok/modules/civicrm/CRM/Core/Error.php, backtrace, 235
, simpleHandler, 
/home/content/i/a/g/iagtadmin/html/iagtok/modules/civicrm/packages/PEAR.php, call_user_func, 931
/home/content/i/a/g/iagtadmin/html/iagtok/modules/civicrm/packages/DB.php, PEAR_Error, 968
/home/content/i/a/g/iagtadmin/html/iagtok/modules/civicrm/packages/PEAR.php, DB_Error, 564
/home/content/i/a/g/iagtadmin/html/iagtok/modules/civicrm/packages/DB/common.php, raiseError, 1903
/home/content/i/a/g/iagtadmin/html/iagtok/modules/civicrm/packages/DB/mysql.php, raiseError, 252
/home/content/i/a/g/iagtadmin/html/iagtok/modules/civicrm/packages/DB.php, connect, 558
/home/content/i/a/g/iagtadmin/html/iagtok/modules/civicrm/packages/DB/DataObject.php, connect, 2291
/home/content/i/a/g/iagtadmin/html/iagtok/modules/civicrm/packages/DB/DataObject.php, _connect, 2529
/home/content/i/a/g/iagtadmin/html/iagtok/modules/civicrm/packages/DB/DataObject.php, _build_condition, 411
/home/content/i/a/g/iagtadmin/html/iagtok/modules/civicrm/CRM/Core/BAO/Setting.php, find, 209
/home/content/i/a/g/iagtadmin/html/iagtok/modules/civicrm/CRM/Core/Config.php, retrieve, 397
/home/content/i/a/g/iagtadmin/html/iagtok/modules/civicrm/CRM/Core/Config.php, _initVariables, 202
/home/content/i/a/g/iagtadmin/html/iagtok/modules/civicrm/drupal/civicrm.module, singleton, 272
/home/content/i/a/g/iagtadmin/html/iagtok/modules/civicrm/drupal/modules/civicrm_member_roles/civicrm_member_roles.module, civicrm_initialize, 76
/home/content/i/a/g/iagtadmin/html/iagtok/modules/user/user.module, civicrm_member_roles_user, 21
/home/content/i/a/g/iagtadmin/html/iagtok/modules/user/user.module, user_module_invoke, 184
/home/content/i/a/g/iagtadmin/html/iagtok/modules/user/user.module, user_load, 1149
/home/content/i/a/g/iagtadmin/html/iagtok/includes/menu.inc, user_uid_optional_load, 411
/home/content/i/a/g/iagtadmin/html/iagtok/includes/menu.inc, _menu_load_objects, 658
/home/content/i/a/g/iagtadmin/html/iagtok/includes/menu.inc, _menu_link_translate, 1027
/home/content/i/a/g/iagtadmin/html/iagtok/includes/menu.inc, _menu_tree_check_access, 1016
/home/content/i/a/g/iagtadmin/html/iagtok/includes/menu.inc, menu_tree_check_access, 954
/home/content/i/a/g/iagtadmin/html/iagtok/includes/menu.inc, menu_tree_page_data, 724
/home/content/i/a/g/iagtadmin/html/iagtok/modules/user/user.module, menu_tree, 748
, user_block, 
/home/content/i/a/g/iagtadmin/html/iagtok/includes/module.inc, call_user_func_array, 461
/home/content/i/a/g/iagtadmin/html/iagtok/modules/block/block.module, module_invoke, 522
/home/content/i/a/g/iagtadmin/html/iagtok/includes/theme.inc, block_list, 1641
, theme_blocks, 
/home/content/i/a/g/iagtadmin/html/iagtok/includes/theme.inc, call_user_func_array, 668
/home/content/i/a/g/iagtadmin/html/iagtok/includes/theme.inc, theme, 1835
, template_preprocess_page, 
/home/content/i/a/g/iagtadmin/html/iagtok/includes/theme.inc, call_user_func_array, 709
/home/content/i/a/g/iagtadmin/html/iagtok/index.php, theme, 35