WordPress Backup Error "Please install the VarDumper class with `composer require symfony/var-dumper`, or remove this helper."

Question

Whenever I take a backup of my WordPress website and import it to another site, I get this error.

Please install the VarDumper class with `composer require symfony/var-dumper`, or remove this helper."

The main website is hosted on DigitalOcean, and the temporary site used to confirm a successful backup is hosted on Hostinger.

I have tried the following methods so far:

• Updraft Plugin
• All-in-One Migration
• Assistance from the hosting team

Every method gives same error in the end.