Tag are named after the same adresse as the wallet that have the bitcoin but they have another adress. Also the wallet wich was 62kb become 712kb and i tried dumppriv key on the adress but get an erroe unable to find privkey.
If the address where coins were sent is not a part of your wallet then obviously you don't have the private key for it and can't spend those coins. Did you by chance purchase this wallet.dat file from someone else? There are scammer that try to pass these off as worth something.