Calculated Item V-cannot evaluate function xxx does not exist

[Woodworm]

Hello,

i have a Problem with one Calculated Item in Zabbix 3.2.3..

Itemprototypes:
vfs.fs.size[{#FSNAME},total] - Result OK

vfs.fs.size[{#FSNAME},used] - Result OK

100*last("vfs.fs.size[{#FSNAME}, used]")/last("vfs.fs.size[{#FSNAME}, total]")
- Cannot evaluate function "last()": item "host.domainl:vfs.fs.size[C:, used]" does not exist.

That worked well, but now.. failure.
Could someone help and give me a hint?

Greetings
René

[Woodworm]

i got values from "total" and "used" in the webinterface, but nothing in the history table ...

someone an idea?
Greetings

[Woodworm]

after i have delete the items and adding them new, the calculated item works again

however, thanks for to beeing here

Greetings