Hi @Soom, welcome to the community!
I am very sorry to hear you are having trouble. Could you try restarting your laptop and then launch the n8n desktop application from the command line and share the terminal output with us (without the tunnel URL which sould be kept secret)? The app would live in C:\Users\Username\AppData\Local\Programs\n8n\n8n.exe (replace Username with your actual Windows username).
It should look similar to this:
