Hi there! I have Zabbix 3.4.4 on brand ubuntu appliance. Everithing was good for a while, a added some hosts, templates, got graphics, tuned dashboards...One day a got error "No permissions to referred object or it does not exist!" on every dashboard, but! some graphics shows good, some - gone, on same and different hosts, no matter. Attached a screen. Need some help!
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