SOLVED: SUDDENLY ERROR: How to RECEIVE TOKEN STAKE? My old method stopped working (see code) | ADVICE very WELCOME! SOLVED!

In the past I checked the users CCD token stake via the node https://api.hive-engine.com/rpc/contracts - but this stopped working. I tried a few other nodes, but can't get it working (because the other nodes don't deliver the full spectrum of functions?). However, I decided to ask for help here. If you have an idea or solution or can forward this question/post to a Hivian who could help, this would be awesome!

Is there another way to check the stake (in best case with JavaScript I think)? Which node do you use? What is wrong suddenly? It worked until 2, 3 days ago. Then api.hive-engine.com was down completely, now the node seems to be back, but my stake reading doesn't start to work again. Your support would be very welcome.

(Yes, I asked at the HiveDevs Discord and two buddies, too. As soon as I have a solution from anywhere I post the solution as comment under this article.)

The way I did it all the time - and worked as far as the api.hive-engine.com node was running well:

async function findUserCCDStake() {
    try {
        const response = await fetch('https://api.hive-engine.com/rpc/contracts', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
            },
            body: JSON.stringify({
                jsonrpc: '2.0',
                method: 'find',
                params: {
                    contract: 'tokens',
                    table: 'balances',
                    query: {
                        symbol: 'CCD',
                        account: 'powerpaul', // powerpaul has 300,000 CCD in stake
                    },
                },
                id: 1,
            }),
        });
        if (!response.ok) {
            throw new Error(`HTTP error! Status: ${response.status}`);
        }

        const userData = await response.json();

        if (userData.result && userData.result.length > 0) {
            userCCDStake = parseFloat(userData.result[0].stake || 0);

            console.log(userCCDStake);
            return userCCDStake;
        } else {
            return 0; // If no CCD stake found
        }

    } catch (error) {
        console.error('Error on api.hive-engine.com/rpc/contracts:', error.message);
        return 0;
    }
}

Once again thank you for your support!