Zabbix Web Interface doesn't show but zabbix_get shows

[pronetin]

I added an item to get physical disks list. When I run zabbix_get on Zabbix Server machine, it get output correctly and it shows output.
But in web interface->Latest data section, doesn't show any output!

Why this happen? How can I resolve it?
Zabbix Server version 4.2.6