Warning: Illegal string offset 'remember' in D:\www\www350\vwss2015\wp-includes\user.php on line 39

Warning: Cannot assign an empty string to a string offset in D:\www\www350\vwss2015\wp-includes\user.php on line 39

Warning: Illegal string offset 'user_login' in D:\www\www350\vwss2015\wp-includes\user.php on line 54

Fatal error: Uncaught Error: Cannot create references to/from string offsets in D:\www\www350\vwss2015\wp-includes\user.php:54
Stack trace:
#0 D:\www\www350\vwss2015\wp-login.php(775): wp_signon()
#1 {main}
  thrown in D:\www\www350\vwss2015\wp-includes\user.php on line 54