Windows 200 error in Event viewer

Has anyone come across this error after running checkdisk and trying to
troubleshoot why this is happening

The first free byte, 0x8f0, in index header of index $I30
in file 0x6c2 is not equal to 0x50.
Correcting error in index $I30 for file 1730.
The first index entry of length 0x10 is a leaf but it is not in the root.
00 00 00 00 00 00 00 00 10 00 00 00 02 00 00 00 ................
c2 06 00 00 00 00 c2 06 98 3d f9 17 d0 6b c2 01 .........=...k..
Sorting index $I30 in file 1730.