All my decks and cards on AnkiDroid have been deleted

I use and have always used the app only on android, when I went to study again I saw that anki deleted all my cards, and 6 months of inactivity have not passed as I saw in an email you sent me, and there is no backup available there. i always backing up in the app.
I’ve tried everything and this backup is nowhere.
Please request my deleted cards as I really need them for my return to school…

Thats odd… Try updating to the latest version. Then sign in, making sure you used the right account.