I am facing this error after a move to new server Magento customer login 

```
{"0":"Notice: Undefined offset: 2 in /www/web/demo/vendor/magento/framework/Encryption/Encryptor.php on line 588"

```

PHP Version is the same: PHP Version 7.2.24-he.0

Sodium from Frank Denis 

What can I do to solve this?

Thanks In advance..!