UPD
I think every run wallet i have a new address.... so i need add address to a address book for save it and mine on it? Because i lost at least one payment from pool, my old address just gone from wallet
Have you backed up your wallet?
check on your C:user/appdata/roaming/freelabit if you got a .wallet file, open that file from wallet on File menu
https://wiki.freelabit.xyz
How i can find folder where blocks?
because freelabit folder is created with blockchain DB and files when synch starts.
Whats the block height showing at the bottom left of the wallet?
If your wallet is synched, it is very strange that you dont have a freelabit directory on AppData/Roaming.
For sure you have it somewhere else on your PC otherwise your wallet can´t synch with the blockchain.
see https://wiki.freelabit.xyz for steps on how to install, back up, encrypt your wallet.
Ps: coins don´t vanish, you can always recover your coins if you have backed up your wallet.
Are u on a VM? We had a couple of users on this thread reporting this issue where they installed FBF wallet on a VM.
Backing up your wallet is something you do with almost every cryptowallet, also encrypting it with a strong password will protect your coins, don´t forget you are your own bank.
Now again, you must have the freelabit directory somewhere in your PC, it´s by default on the AppData/Roaming directory, otherwise your wallet can´t be synched, inside that directory is the blockchain DB along with your .wallet files which you can use to recover your wallets.
What is the block height showing on your wallet please?
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