Influxdb does not start after pi (raspbian buster) update

I have had influxdb running great on a pi zero for over a year.
After doing an apt update & upgrade influxdb no longer seems to be starting.

influx command gives:
Failed to connect to http://localhost:8086: Get http://localhost:8086/ping: dial tcp [::1]:8086: connect: connection refused
Please check your connection settings and ensure ‘influxd’ is running.

influxd command gives:
2021-09-13T12:02:10.392331Z info InfluxDB starting {“log_id”: “0WZlQZHG000”, “version”: “1.8.9”, “branch”: “1.8”, “commit”: “d9b56321d579”}
2021-09-13T12:02:10.395097Z info Go runtime {“log_id”: “0WZlQZHG000”, “version”: “go1.13.8”, “maxprocs”: 1}
run: open server: listen: listen tcp bind: address already in use

I don’t have any other services running on 8088.

Any help appreciated.