Data Forwarder 500 Error

Hi there,
I have set up two very simple Data Forwarders. They all worked perfectly in the beginning. Now the server response is error 500
The input is fine, the output is an error 500 and a message: The application processed the request but returned a blank response. Refer to the HTTP status code above for details.

the point here is that they both worked perfectly and there are no mistakes in the input. I can see that. Only the output doesn't work. I guess my account got flagged or shadow banned

any suggestion? I would like to fix the problem ASAP!
edit: in both cases the forwarders are the last steps.

Edit:
input works just fine, bellow

error in output, keep in mind, it should just forward the input:
How is it possible??

Hi @Digital5,

Could you please share the Workflow URL where you have this concern?

Hello @Digital5,

Upon checking, we noticed that you haven’t added a JSON body as required under the "Enter JSON Data" field. Please ensure that you enter a valid JSON format as shown in the example.

Example:
{
"name": "John Doe",
"email": "[email hidden]",
"tags": "customer|||premium|||newsletter_subscriber"
}

thanks
a few days ago worked just perfectly as a string of text. If you do this updates at least send a notification

Hello @Digital5,

We haven't made any changes recently. Please, let us know if it works fine for you after changing the format.

it worked smoothly without the JSON formatting. You can check my history

btw, thank you. Problem solved! ;)

Hello @Digital5,

Thank you for the update.

Please ensure that the data is passed in JSON format, as specified in the help text.