In the template for Solaris in Zabbix 6.0.7 the item: Checksum of /etc/passwd is defined with a numerical type while it should be a text one.

Because the key: vfs.file.cksum[/etc/passwd,sha256]
returns a string a not a numercial value.

So the fix is very simple:

• turn the item "Checksum of /etc/passwd" field "type of information" into "text".