I have a Java project using vaadin. When I try to open the .ts files it should open the designer on my browser and let me work. It was doing that until now, it simply doesn’t work.
Here is the Error Log:

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I can open the designer if I manually copy the url and paste it on my browser but it should open itself automatically.

This is my configuration:

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I tried doing maven update, cleaning and building the project. It does nothing.
I tried to open the files using “Open with -> Vaadin 14+ Design Editer”. It also does nothing.

I have a friend that showed me his error log and it is slightly different. Here is the image:

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