ASA – Flash Not enough space on device

Cisco

ciscoasa# wr
Building configuration…
Cryptochecksum: 790852d1 cfda3bca 9c9c8ecc c9520791

%Error copying system:/running-config (Not enough space on device)
Error executing command
[FAILED]
ciscoasa# dir
ciscoasa# dir

Directory of disk0:/

2218 drw- 0 09:48:47 Jan 19 2016 coredumpinfo
2216 drw- 0 09:48:43 Jan 19 2016 crypto_archive
2183 drwx 0 09:48:25 Jan 19 2016 log

0 bytes total (0 bytes free)
ciscoasa# format
ciscoasa# format fl
ciscoasa# format flash: ?

<cr>
ciscoasa# format flash:

Format operation may take a while. Continue? [confirm]

Format operation will destroy all data in “flash:”. Continue? [confirm]
Initializing partition – done!
mkdosfs 2.11 (12 Mar 2005)

System tables written to disk

Format of disk0 complete
ciscoasa#
ciscoasa#
ciscoasa# wr
Building configuration…
Cryptochecksum: 790852d1 cfda3bca 9c9c8ecc c9520791

6654 bytes copied in 1.720 secs (6654 bytes/sec)
[OK]
ciscoasa#