Yesterday I lost 11 BTC from my Bitcoin Core 25.0 wallet. The wallet wasn't open at the time. I don't know how it happened. Lots of emotions right now.
But you can't tell clearly if your Bitcoin wallet is hacked or damaged. If your wallet password or Security Seedphase is lost, your 11 BTC will be lost forever. And if you don't login for a lot of time, there might be a problem with your device or network line. If you keep trying to login your wallet repeatedly, if there is a device error, turn it off and try again.