Dashboard failing to retrive data

I am trying to use Node Exporter Full dashboard for Grafana | Grafana Labs dashboard. Sometime it loads the data, but other times it doesn’t. I see following error message in the Grafana logs.

logger=tsdb.prometheus t=2022-06-09T02:25:47.66+0000 lvl=eror msg="Range query failed" query="sum by (instance)(rate(node_cpu_seconds_total{mode=\"system\",instance=\"10.0.17.50:9100\",job=\"node-exporter\"}[1m0s])) * 100" err="Post \"http://prometheus:9090/api/v1/query_range\": context canceled"
logger=tsdb.prometheus t=2022-06-09T02:25:47.66+0000 lvl=eror msg="Range query failed" query="sum by (instance)(rate(node_cpu_seconds_total{mode='user',instance=\"10.0.17.50:9100\",job=\"node-exporter\"}[1m0s])) * 100" err="Post \"http://prometheus:9090/api/v1/query_range\": context canceled"
logger=tsdb.prometheus t=2022-06-09T02:25:47.66+0000 lvl=eror msg="Range query failed" query="sum by (instance)(rate(node_cpu_seconds_total{mode='iowait',instance=\"10.0.17.50:9100\",job=\"node-exporter\"}[1m0s])) * 100" err="Post \"http://prometheus:9090/api/v1/query_range\": context canceled"
logger=tsdb.prometheus t=2022-06-09T02:25:47.66+0000 lvl=eror msg="Range query failed" query="sum by (instance)(rate(node_cpu_seconds_total{mode=~\".*irq\",instance=\"10.0.17.50:9100\",job=\"node-exporter\"}[1m0s])) * 100" err="Post \"http://prometheus:9090/api/v1/query_range\": context canceled"
logger=tsdb.prometheus t=2022-06-09T02:25:47.66+0000 lvl=eror msg="Range query failed" query="sum (rate(node_cpu_seconds_total{mode!='idle',mode!='user',mode!='system',mode!='iowait',mode!='irq',mode!='softirq',instance=\"10.0.17.50:9100\",job=\"node-exporter\"}[1m0s])) * 100" err="Post \"http://prometheus:9090/api/v1/query_range\": context canceled"
logger=tsdb.prometheus t=2022-06-09T02:25:47.66+0000 lvl=eror msg="Range query failed" query="sum by (mode)(rate(node_cpu_seconds_total{mode='idle',instance=\"10.0.17.50:9100\",job=\"node-exporter\"}[1m0s])) * 100" err="Post \"http://prometheus:9090/api/v1/query_range\": context canceled"

What is wrong here ?

Versions
Grafana : 8.5.5
Prometheus : 2.36.0