Used a backup - Grafana is resetted

Hey I use Grafana via InfluxDB on a Home Assistant.
I just reinstalled Grafana and all the data was resetted from the date today when I was done with the reinstall, didnt tough InfluxDB.
But even if I have data for an entity a few days back in InfluxDB I only see data from the date today when I reinstalled Grafana. Doesnt Grafana read all the data influxDB has?