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You can check actual wallet contents by putting the address into a blockchain explorer such as https://cardanoexplorer.com/
People get that message when they have the correct words but enter them incorrectly. Don’t know if that’s the case here, but what you have to do is enter just the first few letters of a word then click on the correct word from the list that appears, then do the same again for next word. You cannot enter any spaces!
Let us know how it goes.
I search my wallet content and it shows 0 ADA.
yes I do exactly enter 12 recovery phrase the same way,
From what you say it looks like somebody got access to your recovery phrase or you were hacked and the ADA was moved, but that wouldn’t explain why you can’t recover the wallet.
Sorry, this is beyond my level of knowledge, hope somebody else can help you.
You posted also here -> https://forum.cardano.org/t/i-lost-my-wallet/17716/7
Is this the address?
It got no transaction.