maybe it was orphant from staking sometimes its not exactly the same amount in wallet and in blockchain but it normal on PoS coins.
Depend from your wallet if is bigger it can have little not the same number coins like 200-300 coins. In my wallet I full synchro I have different something like 200 coins but I dont care.
But if you have very small amount coins and not staking you maybe will try repair wallet.
Well this my first experience of the issue and i had bigger wallets than this before it reported the same exact amount fine. Anyways, I could live past it, just odd for that's all.