Client WP sites broken


my clients 2 websites are unavailble anymore and we have no backup for him, as he reported too late.

The problem is that I have bis work-overhead already myself and have no time to check his sites. Plus we cannot access both wp-admins, so I cannot add these 2 domains to my WPMUDEV-account. I wonder if I can hire you to fix his sites?

We have migrated his 2 WP-sites to a cPanel-account in order to grant access to external developers.

Please help me,
kind regards,