But the Xbox was running just fine. I did not do anything to the NAND or DashLaunch for at least half a year. So why the sudden trouble?
And for the settings of DashLaunch, I used the default settings and only changed the "default path" to Aurora.
Also I did a clean install of the NAND without DashLaunch and installed DashLaunch via the Xbox. But I will try to install DashLaunch via J-runner. I let you know if it resolves my problem and update on other things I tried.