Publishing error: could not evoke ping

Hi there!

I am currently working through the "Developing OutSystems Web Applications" course, and I am stuck at the last assignment (Bookings). I get an error message when attempting to publish any new modules, stating "Deployment Failed. Could not invoke ping. Exception: The remote server returned an error: (404) Not Found.". I am however able to publish updates / changes to the "OSMDB" modules created earlier in the course. I am attaching the error log. It might be worth noting that I started getting these errors after installing SilkUI and the Dublin theme as directed in the previous lesson.

Any help / suggestions would be deeply appreciated!

Service Studio v 10.0.303.0


Can you please reach out the guys will help you out.