Well, I kinda figured it out myself.
The launcher crashed every time I tried to open an app/settings or interacting. It even rebooted the phone and the problem recurred. After some fidling I observed the rebooting wasnt proper. Kinda quick-reboot or something. I therefore turned off phone completely and restarted. Crashing was then gone. Uninstalled rebooted and installed again. Problem solved
As a sidenote: The first time I installed I noticed several atempts to install/download kernels or something. Not a technical guy so cant be more specific. This didnt happen the second time I installed TC.
Also what saved me I think was I left the "start at boot" unchecked.