- Can I suggest that you start by doing your own research (?), eventually from here (?):

Julia Watkins
https://www.quora.com/profile/Julia-Watkins-62
Crypto Recovery Expert Author has 138 answers and 559.3K answer views Aug 29
https://www.quora.com/What-does-Invalid-BTC-transaction-mean
(read on 3dec23

"An invalid BTC transaction means that a transaction that was broadcasted to the Bitcoin network was rejected by the nodes or miners because it did not meet the validity rules. A transaction can be invalid for various reasons, such as:

- The person trying to spend bitcoin does not have enough bitcoin in their address.

- The person trying to spend bitcoin already spent the same bitcoin in another transaction, which is called a double-spend attempt.

- The person trying to spend bitcoin cannot prove that they are the owner of the bitcoin, which is done by providing a digital signature that matches the public key of the address.

- The transaction has a wrong format, size, fee, or version.

An invalid transaction will not be included in a block and will not affect the balance of the sender or the receiver. However, it may still appear on some block explorers or wallets as unconfirmed or pending until it is dropped from the network. If you see an invalid transaction on your wallet or block explorer, you should not rely on it or act upon it. You should wait for a confirmation from a valid transaction before accepting any payment or sending any goods or services."