[Ethereum] Error on pancakeswap, web3 python

I try send transaction but i get error.
https://bscscan.com/tx/0x3e716bc5d0500e8284de39c809a0251d07b0b3648591bf09fbafbb4dea633a34

I use web3.py

tx_params = {
            'from': wallet,
            'gas': 650000,
            'value': 0,
            'nonce': w3.eth.getTransactionCount(wallet)
        }

print(tx_params)

function = router.functions.swapExactTokensForTokens(
    int(7 * 1e18),
    int(5 * 1e18),
    [Web3.toChecksumAddress('0xe9e7cea3dedca5984780bafc599bd69add087d56'),
    Web3.toChecksumAddress('0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c'),
    Web3.toChecksumAddress('0xe9e7cea3dedca5984780bafc599bd69add087d56')],
    wallet,
    int(time.time()) + 10 * 60)

transaction = function.buildTransaction(tx_params)
signed_txn = w3.eth.account.sign_transaction(
    transaction, private_key=private_key
)

txn_hash = w3.eth.send_raw_transaction(signed_txn.rawTransaction)

Tell me please, how can i solve my problem with error 'Insufficient input amount, i have 0.07bnb and 46usd in wallet