I installed Newnigma2_2.5.2 image in flash (it is working more stable in flash than in USB stick and Barry Allen)

Unfortunately I have problem with this flash. After few plugin installation I have got communicate:

ipkg_conf_write_status_files: Can't open status file: //usr/lib/ipkg/status for writing: No space left on device

and no plugin installation is possible.

I checked USB stick and directory: /media/usb/usr/lib/ipkg is on this media.

How can I solve may problem? I want to have this Newnigma image on flash cause of stability issue.