I am trying to use the n8n form trigger node to submit a form using Hostinger VPS. It fails everytime with the error message below. Any help would be awesome.
What is the error message (if any)?
Problem submitting response
Please try again or contact support if the problem persists
Please share your workflow
Share the output returned by the last node
Problem submitting response
Please try again or contact support if the problem persists
Hi there! I tested your flow in n8n Cloud and my self-hosted instance and it worked fine, this points to a configuration issue with your Hostinger VPS setup. I suggest the following troubleshooting steps to narrow down the problem:
1. Test without file uploads (text-only inputs)
Temporarily remove the three file upload fields from your form
This will tell us if it’s a general form submission issue or specifically related to file uploads
If it works without files, we know it’s a file size/upload configuration issue
2. Try a smaller image file
Upload a very small image (under 1MB) to see if it’s hitting a file size limit
3. Check browser Developer Tools
Press F12 to open Developer Tools
Go to the “Console” tab and look for any red error messages
Then switch to the “Network” tab, clear it, and submit the form
Look for the POST request to your webhook and check the status code (like 413, 502, 504)
Screenshot any errors - this will show exactly where the request is being blocked
4. Test in incognito mode
Try submitting in a private/incognito window to rule out browser extensions or cache issues
I tested with only the required image out of the image inputs and it worked then I tried 2 and then 3 and it worked as well. Super weird. It failed at least 10 times in a row on my first attempt hence the post.
