Updating to 4.5 issues

Hallo

I have just tried to update Enfold to 4.5. And I get this messages:

Updating Theme Enfold (1/1)
Warning: preg_match() expects parameter 2 to be string, array given in /customers/b/8/7/seocustomer.com/httpd.www/wp-admin/includes/class-wp-upgrader.php on line 258 Warning: file_exists() expects parameter 1 to be a valid path, array given in /customers/b/8/7/seocustomer.com/httpd.www/wp-admin/includes/class-wp-upgrader.php on line 258 Warning: strip_tags() expects parameter 1 to be string, array given in /customers/b/8/7/seocustomer.com/httpd.www/wp-admin/includes/class-bulk-upgrader-skin.php on line 61 Downloading update from …
Warning: parse_url() expects parameter 1 to be string, array given in /customers/b/8/7/seocustomer.com/httpd.www/wp-admin/includes/file.php on line 970 Warning: strpos() expects parameter 1 to be string, array given in /customers/b/8/7/seocustomer.com/httpd.www/wp-content/plugins/light/light.php on line 36 Warning: preg_split() expects parameter 2 to be string, array given in /customers/b/8/7/seocustomer.com/httpd.www/wp-includes/kses.php on line 1325 Warning: strtolower() expects parameter 1 to be string, array given in /customers/b/8/7/seocustomer.com/httpd.www/wp-includes/http.php on line 517 Warning: strtolower() expects parameter 1 to be string, array given in /customers/b/8/7/seocustomer.com/httpd.www/wp-includes/http.php on line 517

Do you know what is wrong here? Thank you for your help.

Best regards, Henrik Sandberg