@NNatty,

I’m glad you managed to resolve it by doing a clean reinstall.

Thanks so much for your help! The solution was surprisingly simple. It was silly and funny, actually! :D

I’d been noticing for a while that I couldn’t locate the Open WebUI logs. This was confirmed when I used the commands you suggested to find /.open-webui/logs/latest.log and /.open-webui/.env – both resulted in “No such file or directory” errors.

In the end, I just completely reinstalled everything remotely related to open-webui, using:

`pip uninstall -r requirements.txt`
`pip uninstall open-webui`

followed by manually deleting any remaining files. :D

Thank you for your time and effort! :3

@NNatty,

Thank you for your feedback!

Since DeepSeek is working in the terminal but not through Open WebUI, it seems like the issue is related to WebUI configuration or network access.

Let’s troubleshoot step by step:

1. Run this command on your Ubuntu server to check what’s causing the “500: Internal Error“:

tail -f ~/.open-webui/logs/latest.log

2. Since Open WebUI depends on Ollama, ensure Ollama is running:

systemctl status ollama
OR
systemctl restart ollama

3. Also, confirm that DeepSeek is installed correctly.

ollama list

If you don’t see deepseek-r1:7b, reinstall it:

ollama pull deepseek-r1:7b

4. Since you’re accessing WebUI from another machine (ip_virtual_m:8080), you need to ensure it listens on all interfaces.

nano ~/.open-webui/.env

Modify or add these lines:

PORT=8080
HOST=0.0.0.0

5. Save and restart WebUI:

pkill open-webui
open-webui serve &

Then, try accessing http://your_vm_ip:8080 from your desktop.

Thank you for your excellent article. I have a problem. I installed DeepSeek according to your guide. I’m using a system without a GPU. When I open the WebUI, I can successfully register and log in, but I can’t use the DeepSeek model; all I see is a white screen with the message “500: Internal Error“.

I installed the DeepSeek model on an Ubuntu Server 24.04 system without a GUI, on a virtual machine using Hyper-V. The model works fine in the terminal, but I can’t access the browser on this virtual machine to use the Open WebUI. Therefore, I open a browser on my regular desktop computer and go to the ip_virtual_m:8080 link. Again, the Open WebUI opens, and I can log in, but nothing else works.

Do you know what the problem might be, or do you have any guesses? I would appreciate any help and response.

Thank you very much.

@Hugo,

Make sure the contents are correctly written and replace your_username with your actual username.