item error field is limited to 128 characters, which sometimes is not enough. might be useful to increase field length.

for example :

Can't create item [vfs.dev.read[sda,sectors]]: item already exists Can't create item [vfs.dev.write[sda,sectors]]: item already

additionally, this error does not match https://zabbix.org/wiki/Docs/specs/syntax#Grammar_.26_style (Can't vs Cannot)