Customize Not Working – Warnings

After updating the theme (from a the original “Alex” version), the ‘Customize page from the ‘admin’ panel is not loading. Any help is greatly appreciated.

The following “Warnings” show up:
Warning: array_search() expects parameter 2 to be array, boolean given in /home2/holder18/public_html/wp-includes/widgets.php on line 1327

Warning: array_search() expects parameter 2 to be array, boolean given in /home2/holder18/public_html/wp-includes/widgets.php on line 1327

Warning: array_search() expects parameter 2 to be array, boolean given in /home2/holder18/public_html/wp-includes/widgets.php on line 1327

Warning: array_search() expects parameter 2 to be array, boolean given in /home2/holder18/public_html/wp-includes/widgets.php on line 1327

Warning: array_search() expects parameter 2 to be array, boolean given in /home2/holder18/public_html/wp-includes/widgets.php on line 1327

Warning: array_search() expects parameter 2 to be array, boolean given in /home2/holder18/public_html/wp-includes/widgets.php on line 1327

Warning: array_search() expects parameter 2 to be array, boolean given in /home2/holder18/public_html/wp-includes/widgets.php on line 1327

Warning: array_search() expects parameter 2 to be array, boolean given in /home2/holder18/public_html/wp-includes/widgets.php on line 1327

Warning: array_search() expects parameter 2 to be array, boolean given in /home2/holder18/public_html/wp-includes/widgets.php on line 1327

Warning: array_search() expects parameter 2 to be array, boolean given in /home2/holder18/public_html/wp-includes/widgets.php on line 1327

Warning: array_search() expects parameter 2 to be array, boolean given in /home2/holder18/public_html/wp-includes/widgets.php on line 1327

Warning: array_search() expects parameter 2 to be array, boolean given in /home2/holder18/public_html/wp-includes/widgets.php on line 1327

Warning: array_search() expects parameter 2 to be array, boolean given in /home2/holder18/public_html/wp-includes/widgets.php on line 1327

Warning: array_search() expects parameter 2 to be array, boolean given in /home2/holder18/public_html/wp-includes/widgets.php on line 1327

Warning: array_search() expects parameter 2 to be array, boolean given in /home2/holder18/public_html/wp-includes/widgets.php on line 1327

Warning: array_merge(): Argument #11 is not an array in /home2/holder18/public_html/wp-includes/widgets.php on line 1160

Warning: array_diff(): Argument #2 is not an array in /home2/holder18/public_html/wp-includes/widgets.php on line 1161

Warning: Invalid argument supplied for foreach() in /home2/holder18/public_html/wp-includes/widgets.php on line 1163

Warning: array_merge(): Argument #1 is not an array in /home2/holder18/public_html/wp-includes/widgets.php on line 1171

Warning: Cannot modify header information – headers already sent by (output started at /home2/holder18/public_html/wp-includes/widgets.php:1327) in /home2/holder18/public_html/wp-admin/includes/misc.php on line 1126

Warning: Cannot modify header information – headers already sent by (output started at /home2/holder18/public_html/wp-includes/widgets.php:1327) in /home2/holder18/public_html/wp-includes/option.php on line 919

Warning: Cannot modify header information – headers already sent by (output started at /home2/holder18/public_html/wp-includes/widgets.php:1327) in /home2/holder18/public_html/wp-includes/option.php on line 920

The page I need help with: [log in to see the link]