A error at deleting a folder

[tsukina22]

Hello, I'm getting this error on the imagine below when i try to delete a folder that say is empty but is taking 4gb of me, i they deleting on PC giving permission, with FTP and now Tegra and this folder just won't delete, what can I do? What this error mean?

[suchmememanyskill]

Does it also not delete in windows? If so, i can't do a whole lot. Usually this kind of stuff is caused by filesystem corruption