My mysql database disappeared and showing null

Dear sir,
i have created a website and its database and uploaded it on your hosting… it was working fine till 3 days but after that it starting showing error in database connection… when i saw in phpmyadmin there was no database…
these were my database’s credentails,
DB_HOST=sql105.epizy.com
DB_PORT=3306
DB_DATABASE=epiz_24463423_accountingprogram
DB_USERNAME=epiz_24463423
DB_PASSWORD=********

but now there is no database … i dont know where it has gone… what could be the solultion…
this is my website link…
http://alqasimaccounts1.epizy.com/accontingprogram/public/
username: abc@gmail.com
password: asdf1234

It looks your volume was DDoSed, you should wait until it fixes

I have same issue