'Weird error message I get when installing YAWL for the first time

So, I'm doing a project for uni and we have been asked to install YAWL on our computers in order to create a workflow for medical guidelines. I download the YAWL installer from the official site (I have a Windows 10 laptop) and once I run the .exe in order to begin the installation, i get greeted with the following error:

Errror

Now, I have never installed YAWL before on this computer. I also happen to have never installed TOMCAT, so I'm not sure what to do here. I tried to open the process manager and close off everything, but i still get this message. What could I do?



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