Can't view hostname after upgrade

Hello everyone,
After upgrading Grafana to v10.2 from v7.1.5 we can’t visualize the following panel:

The query is trying to get the zabbix_agent hostname and before the upgrade it was working fine. Is there a way to fix this, maybe with a different panel visualization?

Thank you in advance for your help

Hello asanfilippo.

Check if the Fields field is as “numeric fields”, change it to “Last value”, as it is using text type, it returns as nodata.

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