Proxmox Experto 2

hola tengo en mi servidor PROXMOX tengo un maquina virtual pero no me deja iniciarla me sale este mensaje ALGUIEN SABE ARREGLARLO kvm: -drive file=/datastore/images/100/[login to view URL],if=none,id=drive-scsi0,format=qcow2,cache=none,aio=native,detect-zeroes=on: qcow2: Image is corrupt; cannot be opened read/write TASK ERROR: start failed: command '/usr/bin/kvm -id 100 -chardev 'socket,id=qmp,path=/var/run/qemu-server/[login to view URL],server,nowait' -mon 'chardev=qmp,mode=control' -pidfile /var/run/qemu-server/[login to view URL] -daemonize -smbios 'type=1,uuid=109da85c-77f6-4d07-825a-fc3dfeddb20c' -name 9878 -smp '6,sockets=1,cores=6,maxcpus=6' -nodefaults -boot 'menu=on,strict=on,reboot-timeout=1000,splash=/usr/share/qemu-server/[login to view URL]' -vga cirrus -vnc unix:/var/run/qemu-server/[login to view URL],x509,password -cpu kvm64,+lahf_lm,+sep,+kvm_pv_unhalt,+kvm_pv_eoi,enforce -m 9348 -k en-us -device 'pci-bridge,id=pci.1,chassis_nr=1,bus=pci.0,addr=0x1e' -device 'pci-bridge,id=pci.2,chassis_nr=2,bus=pci.0,addr=0x1f' -device 'piix3-usb-uhci,id=uhci,bus=pci.0,addr=0x1.0x2' -device 'usb-tablet,id=tablet,bus=uhci.0,port=1' -device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3' -iscsi 'initiator-name=[login to view URL]:d4b42b85d7df' -drive 'if=none,id=drive-ide2,media=cdrom,aio=threads' -device 'ide-cd,bus=ide.1,unit=0,drive=drive-ide2,id=ide2,bootindex=200' -device 'virtio-scsi-pci,id=scsihw0,bus=pci.0,addr=0x5' -drive 'file=/datastore/images/100/[login to view URL],if=none,id=drive-scsi0,format=qcow2,cache=none,aio=native,detect-zeroes=on' -device 'scsi-hd,bus=scsihw0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0,id=scsi0,bootindex=100' -netdev 'type=tap,id=net0,ifname=tap100i0,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown' -device 'e1000,mac=22:4C:A1:4A:AC:5D,netdev=net0,bus=pci.0,addr=0x12,id=net0,bootindex=300'' failed: exit code 1