Trouble getting Hafen

[Cryojager]

After a long absence from Haven, I decided to get back on with my old computer because the new Hafen was supposed to be up-and-running. After I get on, I deleted my old custom client and all the old Haven files I could find. After encountering this bugger (picture above) when I clicked "play" at the top of the portal, I looked on forums about it, and figured out it was an old Haven something in my Java cache. I deleted my old Java cache file (I'm not 100 percent sure what it was called, but I think it was something along the lines of "autohaven") on it and figured I could just reinstall everything. After getting the error message again and reinstalling Java, I still got the same notice when I tried to run the browser "autohaven". I still get this error and I cannot find a clear answer. This might just be me being stupid and missing something obvious, seeing that the file it can't seem to find something called autohaven, but it couldn't find it with or without the Java cache so I'm figuring there's some steps I don't know about for hafen. Any answers?

[Gabula]

Try downloading a custom client and see if that works.

[shubla]

Try again. Maybe try saving it to your computer first instead of just opening it.

[Cryojager]

It worked after I launched it manually with Java, figures.

(I told you it was probably gonna be me being stupid)