Default [Q] insufficient storage available

Hi,

I did a full format and installed cm11 on my galaxy s4 i9505 yesterday.

While installing some apps it randomly started saying insufficient storage available but not always and biggers apps could still be installed.
I read about logcat and dumpstate but i cannot dial the number in cm dialpad and with terminal it says /data/logs is not found. Also when i search manually it is not to be found.

I did however find logcat file and dumpstate file in system/bin but they are small files (no folder with logs).
Also lost and found folder is empty.
Already have 4 GB free storage space but still het the error.

I tried many cache cleaner and general Cleaners and also deleted dalvik cache and formated cache partition but nothing helped.
I dont want to Factory reset again cus i already lost a lot of time configuring the phone twice.


I hope i can find some help here.
Thanks