Hi Rasheed,
Please share kernel release with us & try to upgrade kernel with the latest available.It might be issue with kernel,as most of file sizes with 0KB as RB also suggested you.
Also please check permissions on /usr/sap/SID/SUM/... directory .
A few of the usual causes for this are:
- OS Permissions
- Package corruption
- Low disk space in the Transport Directory or Upgrade Directory
Thanks,
Gaurav