Well, my phone was with the internal storage almost full, than I couldn't update my apps. Then, my whatsapp was an older version.
Today, I woke up and all my chats were gone! It asked me if I would want to restore, but it got stucked at 81%. I closed the app and tried again. Same problem. Then, I had a backup on drive from yesterday 23h30. I reseted my phone and would restore my chats from there. I didn't do a bakup for msgstore .db.crypt file, because the backup on drive was updated.
When I installed the whatsapp, it asks me about the backup, but it fails and the chats aren't recovered. I noticed that there was missing an google account in the phone (I use two), but still not working. Now I have to wait 24h to try again.
The problem is that I was using an old version of whatsapp and now the app is the new? Can I recover the msgstore .db.crypt file?