Unexpected Token Error in VS Code
I'm trying to set up VS Code for ObjectScript using the instructions found here. I've got both Cache 2018.1.2.309.0 and IRIS 2020.1.0.215.0. When I try to connect to either one of them the connection fails, and I get a notification in the bottom right corner that says "Unexpected token < in JSON at position 0". I've checked the JSON settings file that VS Code uses, and they're fine and formatted properly. All of the settings I've entered are correct. I suspect that there's a response coming back from the server that VS Code is expecting to be JSON, but isn't. It pops up any time I click on anything under "OBJECTSCRIPT:EXPLORER" or any time I click on a different tab at the top.
I have no idea where to go to even begin troubleshooting this. Has anyone else had this issue come up, or can someone point me where to go to figure out what's going on?
The contents of my settings.json are: