Problem with postgres template via zabbix agent

[mkon]

Hey,
i have problem with some data from postgres template. Some template charts send messages, some have empty data. The setup is the same. There isn't much information on the internet about this. I don't know how to solve this problem, maybe some of you have already encountered something like this

[cyber]

Start from verifying if your items are in supported state. If not, there should be somekind of error message. Start with that one. try to resolve it.

[mkon]

Items get data but some graphs still show no data. The only strange thing is that there are only eight graphs, and there are fifteen graphs from the template, and basically these eight coincide with those displaying data. I haven't found a similar problem anywhere, the template is attached everywhere and everything works. Half of it works for me and I don't know if it's good. If anyone has encountered a similar topic, please help.