Cannot read properties of undefined (reading 'data')

In use Grafana - 6.3.5 - Run, Working and create Dashboards
Influxdb - 2.7.1 - installed on Windows node, run and scan listen port 8086
Listening {"log_id": "0indVwAW000", "service": "tcp-listener", "transport": "http", "addr": ":8086", "port": 8086}

The Problem:
Grafana identified working DataSource for Influxdb, but in “Save and Test” indicated that:

Cannot read properties of undefined (reading ‘data’)

From working InfluxDB:
2023-07-03T07:22:00.007177Z info Unauthorized {“log_id”: “0indVwAW000”, “error”: “authorization not found”}
2023-07-03T07:22:10.000866Z info Unauthorized {“log_id”: “0indVwAW000”, “error”: “authorization not found”}

I tried to use Basic Auth with credentials defined in Fronted UI InfluxDB - w/o any successfully result