Doesn't open, using port but saying it's blocked, Linux Mint

[opponent019]

• [ x ] I am on the latest ActivityWatch version.
• [ x ] I have searched the issues of this repo and believe that this is not a duplicate.

• OS name and version: Linux Mint latest
• ActivityWatch version: 0.13.2 Linux

Describe the bug

I never get the tray icon or any indication of anything running. The first day I tried it the localhost timeline was showing up fine but saying there was nothing recorded.
I left it for some time and now I'm trying again, redownloaded, still nothing happens when I double click the aw-qt file. Now the timeline doesn't load, says unable to connect.
So I thought of running it in the terminal and it says it can't use the port 5600 because it's being used, to pause whatever app is using it. I check what's using it and it's this. Yet nothing in my tray and nothing in the localhost timeline.

To Reproduce

Expected behavior

An icon is added to the tray when double clicking aw-qt

Documentation

Additional context

I'm a Linux newbie
Thank you

[github-actions]

Hi there!
As you're new to this repo, please make sure you've used an appropriate issue template and searched for duplicates (it helps us focus on actual development!). We'd also like to suggest that you read our contribution guidelines and our code of conduct.
Thanks a bunch for opening your first issue! 🙏