Cannot consolidate disk

Hi,

I'm on ESXi 6.0.

I cannot consolidate disk on a VM.

Error message is : Unable to create new file /vmfs/volumes/5d07c508-4d7f2074-4772-bc305bcea839/Srviis01/Srviis01-ctk.vmdk' : msg.fileio.generic.

Do you know how to fix this error ?

Thanks for your help

Regards