500 error in wp-admin

I’m unable to login to wp-admin on a site I have just moved form one server to another.

I’ve turned on debugging and I’m getting the following errors when trying to login to wp-admin

—————————————-

[26-Sep-2017 06:35:29 UTC] PHP Warning: Illegal string offset ‘remember’ in E:\domains\mywebsite\www\wp-includes\user.php on line 39
[26-Sep-2017 06:35:29 UTC] PHP Warning: Cannot assign an empty string to a string offset in E:\domains\mywebsite\www\wp-includes\user.php on line 39
[26-Sep-2017 06:35:29 UTC] PHP Warning: Illegal string offset ‘user_login’ in E:\domains\mywebsite\www\wp-includes\user.php on line 54

[26-Sep-2017 06:35:29 UTC] PHP Fatal error: Uncaught Error: Cannot create references to/from string offsets in E:\domains\mywebsite\www\wp-includes\user.php:54

Stack trace:
#0 E:\domains\mywebsite\www\wp-login.php(770): wp_signon(”, ”)
#1 {main}
thrown in E:\domains\mywebsite\www\wp-includes\user.php on line 54

—————————————-

I’ve removed all of the plugins, with no change.

Can anyone offer some more advice please as to what I can do to login to the admin system

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