Downtime is starting! Please be patient while the dev works on the site for a short while.
Is our balance will not hurt?
Your balance shouldn't be affected, this is just some necessary maintenance work.
Pd is not closing?
No, they're not closing. They're doing a database migration to more effectively deal with the volume of data they're handling.
(They mentioned to expect downtime in previous posts in this thread, you can get a few more details on what exactly is happening there.)