Error loading dashboards after upgrading to Grafana 12.4.0.

**Describe the bug** After updating to Grafana 12.4, no dashboard loads and the following error is shown: Failed to load dashboard could not get user teams: sql: Scan error on column index 4, name "external": sql/driver: couldn't convert <nil> (<nil>) into type bool If I downgrade Grafana to version 12.3.4, everything works again without any problems. **Screenshots** <img width="1820" height="325" alt="Image" src="https://github.com/user-attachments/assets/bf2345df-3059-4cae-be67-dda8d424eb67" /> **Software versions** | Grafana | Zabbix | Grafana-Zabbix Plugin | | ------- | ------ | --------------------- | | v12.4.0 | 7.4.7 | 6.2.0 |