If DB is missing then try the below methods.
Method A: Try Get DB from server
Method B: Check DB Backup path
Method C: Check Recycle Bin
Method D: Ask / Enquire for backup to your hosting provider
VPS/servers come with backup & snapshots. Make sure you do not miss them in case you enabled & forgot the same.
Method E: Use of DB recovery software
Here is video tutorial to recover DB from .frm & .ibd files. Kindly check other tutorials if this trick does not work for you.
Hope it will be helping you to recover your DB. Best wishes.