Hi looking at the VIX error code list that one is listed as
"A tools installation is already in progress."
Have you tried restarting the windows installer service?
You might also try applying any MS patches for the windows installer (or make sure WindowsUpdate isn't trying to do that already mid your tools install)
Also that error may indicate that another vmtools install is in progress on that host. Thereby locking the vmtools iso that it's trying to mount.
Have you tried running services.sh restart from the esxi host?