Error in post-list controller

Whilst testing a custom form I saw this error in the console "Error in post-list controller. I have no idea what this means. There’s no indication what line in my code could be causing the problem. Possibly has something to do with sendFormData as the database insert updates my database as expected. Would appreciate if anyone can shed some light on the issue?
My code:

wixData.insert('sOrders', toInsert)
 .then ( (results) => {
 let item = results;
        console.log(item);
            $w("#accountingOrder").changeState("accounting3");
            setTimeout(function () {
                $w("#successMsg").show();
 }, 1000);

            sendFormData();

            setTimeout(function () {
                wixLocation.to('/home')
 }, 7000);

 }) .catch( (err) => {
 let errorMsg = err.message;
        console.log(errorMsg);
        $w("#accountingOrder").changeState("accounting3");
        setTimeout(function () {
                $w("#failureMsg").show();
 }, 1000);
            setTimeout(function () {
                $w("#accountingOrder").changeState("accounting1");
 }, 3000);
 });
}

function sendFormData() {
 const subject = `Order number ${$w("#ticket").text} submitted by ${$w("#name").value} from ${$w("#company").value}`;
 const body = `We have received your order form ${$w("#ticket").text} and will reply to you within 2 hours.
    \n
    \r Below is a copy of the details you submitted:
    \n
    \r Company: ${$w("#company").value}
    \r Name: ${$w("#name").value}
    \r Email: ${$w("#email").value}
    \r Contact number: ${$w("#number").value}
    \n
    \r SERVICE DETAILS
    \r Service ordered: ${$w("#serviceName").value}
    \r
    \r PAYMENT & TOTALS
    \r Payment preference: ${$w("#paymentOption").value}
    \r Service total: ${$w("#serviceTotal").value}
    \r Add-ons total: ${$w("#addonTotal").value}
    \r Software subscription: ${$w("#softwareTotal").value}
    \r Annual payment: ${$w("#annualTotal").value}
    \r Monthly total: ${$w("#monthlyTotal").value}
    \r
    \r Thank you for considering us to provide your accounting services.
    \r A team member will be in touch to provide you with the next steps in the process.
    \r
    \r Regards,
    \r The Unsquared Team`;
 const recipient = $w("#email").value;

    sendEmailWithRecipient(subject, body, recipient)
 .then(response => console.log(response)); 
 
    sendEmail(subject, body)
 .then(response => console.log(response));
}

Update May 3, 2021. Screenshot of console output attached.

Here is a text version:

stack: "Error: request failed: url=/blog-frontend-adapter-public/v1/post-list-widget/render-model?postLimit=10 status=400 config={"headers":{"instance":"4cmL5uOyZtUJ_KUDD0TqDMnFJexQxSdgcYM4EUGxWaQ.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","Authorization":"4cmL5uOyZtUJ_KUDD0TqDMnFJexQxSdgcYM4EUGxWaQ.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","locale":"en","x-wix-site-revision":"1534"},"credentials":"same-origin"} error={}\n at https://static.parastorage.com/services/communities-blog-viewer-app/1.1183.0/viewer-script.bundle.min.js:1:176451"

If anyone can shed light on this issue would be appreciated.

Even I am getting the same error while calling api endpoints. The code was working fine earlier but has suddenly started to show this error again and again.
Can anyone solve this issue?

I just started getting this error too. I have no idea why. I only get it on pages that reference the blog. Not the blog page itself. But on another page in my site, I have a widget that displays a blog post list. I believe this error is caused by something recently broken in this widget. Would be great if someone from Wix blog team could weigh in on this. In the meantime, I’ll post on the blog forum.

I haven’t added any custom code, yet I have the same problem