Warning - Can't test on my watch

Any idea of how I can resolve this???

I fixed it by getting new distributer certificate. Also please look at @r.liechty_SDP post. He gave other solutions to the issue. I am not able to push my watchfaces via Galaxy Watch Studio

I am experiencing “the same problem” and I have already tried the solutions suggested by Ron in the link … could anyone solve? What else can be done?
I have not updated anything, nor have I changed my position, the only thing I did was turn on the pc