fsck error

[hec]

I got following error:

Log of fsck -C -R -A -a 
Mon May 16 19:54:19 2011

fsck 1.41.3 (12-Oct-2008)
/dev/pve/data: Resize inode not valid.  

/dev/pve/data: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
	(i.e., without -a or -p options)
/dev/sdb1: clean, 42/131072 files, 109608/524288 blocks
/dev/sda5: clean, 165920/53772288 files, 44144575/107527045 blocks
fsck died with exit status 4

How do i repair it without datalost?