Hi Wobbiso,
Did you send a crash report ? If yes, what is your mail ? (answer me by PM for this

)
Crash report send us more info than the log file, so it's really useful for us.
Did you have Designer 5 before ?
You said that you uninstalled and reinstalled Designer 6 and you still have the same issue but I see in your log file that Designer is installed on E:/.
Can you try to reinstall it on C:/ ?
I will send you by PM instructions in order to make a clean install.