The contents of the domain lda.ng have been discarded, the associated WP database developer1_lda has been dropped, and you've been unsuspended. Your account may take up to 2 hours to function fully. The attack came in through Wordpress itself, which is usually either a result of plugins with vulnerabilities, or failure to install updates.
A backup from February actually does exist for your account at https://heliohost.org/backup/ if you need anything from that timeframe.
You can make backups using the backup tool in Plesk. Note that if you use this, it is advised that you configure remote storage, as the backups it creates count towards your disk space quota and can quickly cause you to run out of space.