Error Loading Plugin Check the server startup logs for more information. If this plugin was loaded from git, make sure it was compiled.

[zameeransari]

Getting below error while using it in visualization:
Error loading: mtanda-histogram-panel (screenshot attached at bottom)

Kubernetes version: 1.15.11
Grafana version: 6.7.2
Server logs:
installing grafana-azure-data-explorer-datasource @ 2.0.6
from: https://grafana.com/api/plugins/grafana-azure-data-explorer-datasource/versions/2.0.6/download
into: /var/lib/grafana/plugins

✔ Installed grafana-azure-data-explorer-datasource successfully

Restart grafana after installing plugins .

installing grafana-azure-monitor-datasource @ 0.3.0
from: https://grafana.com/api/plugins/grafana-azure-monitor-datasource/versions/0.3.0/download
into: /var/lib/grafana/plugins

✔ Installed grafana-azure-monitor-datasource successfully

Restart grafana after installing plugins .

installing camptocamp-prometheus-alertmanager-datasource @ 0.0.8
from: https://grafana.com/api/plugins/camptocamp-prometheus-alertmanager-datasource/versions/0.0.8/download
into: /var/lib/grafana/plugins

✔ Installed camptocamp-prometheus-alertmanager-datasource successfully

Restart grafana after installing plugins .

installing grafana-clock-panel @ 1.0.3
from: https://grafana.com/api/plugins/grafana-clock-panel/versions/1.0.3/download
into: /var/lib/grafana/plugins

✔ Installed grafana-clock-panel successfully

Restart grafana after installing plugins .

installing natel-plotly-panel @ 0.0.6
from: https://grafana.com/api/plugins/natel-plotly-panel/versions/0.0.6/download
into: /var/lib/grafana/plugins

✔ Installed natel-plotly-panel successfully

Restart grafana after installing plugins .

installing natel-discrete-panel @ 0.1.0
from: https://grafana.com/api/plugins/natel-discrete-panel/versions/0.1.0/download
into: /var/lib/grafana/plugins

✔ Installed natel-discrete-panel successfully

Restart grafana after installing plugins .

installing vonage-status-panel @ 1.0.9
from: https://grafana.com/api/plugins/vonage-status-panel/versions/1.0.9/download
into: /var/lib/grafana/plugins

✔ Installed vonage-status-panel successfully

Restart grafana after installing plugins .

installing flant-statusmap-panel @ 0.2.0
from: https://grafana.com/api/plugins/flant-statusmap-panel/versions/0.2.0/download
into: /var/lib/grafana/plugins

✔ Installed flant-statusmap-panel successfully

Restart grafana after installing plugins .

installing grafana-piechart-panel @ 1.5.0
from: https://grafana.com/api/plugins/grafana-piechart-panel/versions/1.5.0/download
into: /var/lib/grafana/plugins

✔ Installed grafana-piechart-panel successfully

Restart grafana after installing plugins .

installing briangann-gauge-panel @ 0.0.6
from: https://grafana.com/api/plugins/briangann-gauge-panel/versions/0.0.6/download
into: /var/lib/grafana/plugins

✔ Installed briangann-gauge-panel successfully

Restart grafana after installing plugins .

installing snuids-radar-panel @ 1.4.4
from: https://grafana.com/api/plugins/snuids-radar-panel/versions/1.4.4/download
into: /var/lib/grafana/plugins

✔ Installed snuids-radar-panel successfully

Restart grafana after installing plugins .

installing grafana-polystat-panel @ 1.1.0
from: https://grafana.com/api/plugins/grafana-polystat-panel/versions/1.1.0/download
into: /var/lib/grafana/plugins

✔ Installed grafana-polystat-panel successfully

Restart grafana after installing plugins .

installing mtanda-histogram-panel @ 0.1.6
from: https://grafana.com/api/plugins/mtanda-histogram-panel/versions/0.1.6/download
into: /var/lib/grafana/plugins

✔ Installed mtanda-histogram-panel successfully

Restart grafana after installing plugins .

installing grafana-piechart-panel @ 1.6.1
from: https://grafana.com/api/plugins/grafana-piechart-panel/versions/1.6.1/download
into: /var/lib/grafana/plugins

✔ Installed grafana-piechart-panel successfully

Restart grafana after installing plugins .

t=2020-09-23T10:16:34+0000 lvl=info msg="Starting Grafana" logger=server version=6.7.2 commit=423a25fc32 branch=HEAD compiled=2020-04-02T08:02:56+0000
t=2020-09-23T10:16:34+0000 lvl=info msg="Config loaded from" logger=settings file=/usr/share/grafana/conf/defaults.ini
t=2020-09-23T10:16:34+0000 lvl=info msg="Config loaded from" logger=settings file=/etc/grafana/grafana.ini
t=2020-09-23T10:16:34+0000 lvl=info msg="Config overridden from command line" logger=settings arg="default.paths.data=/var/lib/grafana"
t=2020-09-23T10:16:34+0000 lvl=info msg="Config overridden from command line" logger=settings arg="default.paths.logs=/var/log/grafana"
t=2020-09-23T10:16:34+0000 lvl=info msg="Config overridden from command line" logger=settings arg="default.paths.plugins=/var/lib/grafana/plugins"
t=2020-09-23T10:16:34+0000 lvl=info msg="Config overridden from command line" logger=settings arg="default.paths.provisioning=/etc/grafana/provisioning"
t=2020-09-23T10:16:34+0000 lvl=info msg="Config overridden from command line" logger=settings arg="default.log.mode=console"
t=2020-09-23T10:16:34+0000 lvl=info msg="Config overridden from Environment variable" logger=settings var="GF_PATHS_DATA=/var/lib/grafana"
t=2020-09-23T10:16:34+0000 lvl=info msg="Config overridden from Environment variable" logger=settings var="GF_PATHS_LOGS=/var/log/grafana"
t=2020-09-23T10:16:34+0000 lvl=info msg="Config overridden from Environment variable" logger=settings var="GF_PATHS_PLUGINS=/var/lib/grafana/plugins"
t=2020-09-23T10:16:34+0000 lvl=info msg="Config overridden from Environment variable" logger=settings var="GF_PATHS_PROVISIONING=/etc/grafana/provisioning"
t=2020-09-23T10:16:34+0000 lvl=info msg="Config overridden from Environment variable" logger=settings var="GF_SECURITY_ADMIN_USER=admin"
t=2020-09-23T10:16:34+0000 lvl=info msg="Config overridden from Environment variable" logger=settings var="GF_SECURITY_ADMIN_PASSWORD=*********"
t=2020-09-23T10:16:34+0000 lvl=info msg="Path Home" logger=settings path=/usr/share/grafana
t=2020-09-23T10:16:34+0000 lvl=info msg="Path Data" logger=settings path=/var/lib/grafana
t=2020-09-23T10:16:34+0000 lvl=info msg="Path Logs" logger=settings path=/var/log/grafana
t=2020-09-23T10:16:34+0000 lvl=info msg="Path Plugins" logger=settings path=/var/lib/grafana/plugins
t=2020-09-23T10:16:34+0000 lvl=info msg="Path Provisioning" logger=settings path=/etc/grafana/provisioning
t=2020-09-23T10:16:34+0000 lvl=info msg="App mode production" logger=settings
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing SqlStore" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Connecting to DB" logger=sqlstore dbtype=mysql
t=2020-09-23T10:16:34+0000 lvl=info msg="Starting DB migration" logger=migrator
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing HTTPServer" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing BackendPluginManager" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing PluginManager" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Starting plugin search" logger=plugins
t=2020-09-23T10:16:34+0000 lvl=info msg="Registering plugin" logger=plugins name="D3 Gauge"
t=2020-09-23T10:16:34+0000 lvl=info msg="Registering plugin" logger=plugins name="Prometheus AlertManager"
t=2020-09-23T10:16:34+0000 lvl=info msg="Registering plugin" logger=plugins name=Statusmap
t=2020-09-23T10:16:34+0000 lvl=info msg="Registering plugin" logger=plugins name="Azure Data Explorer Datasource"
t=2020-09-23T10:16:34+0000 lvl=eror msg="Plugins: Failed to load plugin json file: /var/lib/grafana/plugins/grafana-azure-monitor-datasource/dist/plugin.json, err: Failed to register plugin: Plugin with ID "grafana-azure-monitor-datasource" already exists"
t=2020-09-23T10:16:34+0000 lvl=info msg="Registering plugin" logger=plugins name=Clock
t=2020-09-23T10:16:34+0000 lvl=info msg="Registering plugin" logger=plugins name="Pie Chart"
t=2020-09-23T10:16:34+0000 lvl=info msg="Registering plugin" logger=plugins name=Polystat
t=2020-09-23T10:16:34+0000 lvl=info msg="Registering plugin" logger=plugins name=Histogram
t=2020-09-23T10:16:34+0000 lvl=info msg="Registering plugin" logger=plugins name=Discrete
t=2020-09-23T10:16:34+0000 lvl=info msg="Registering plugin" logger=plugins name=Plotly
t=2020-09-23T10:16:34+0000 lvl=info msg="Registering plugin" logger=plugins name="Radar Graph"
t=2020-09-23T10:16:34+0000 lvl=info msg="Registering plugin" logger=plugins name="Status Panel"
t=2020-09-23T10:16:34+0000 lvl=warn msg="Some plugins failed to load" logger=plugins errors="[Failed to register plugin:\n github.com/grafana/grafana/pkg/util/errutil.Wrap\n /root/project/pkg/util/errutil/errors.go:18\n - Plugin with ID "grafana-azure-monitor-datasource" already exists]"
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing HooksService" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing OSSLicensingService" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing InternalMetricsService" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing RemoteCache" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing RenderingService" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing AlertEngine" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing QuotaService" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing ServerLockService" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing UserAuthTokenService" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing DatasourceCacheService" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing LoginService" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing SearchService" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing TracingService" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing UsageStatsService" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing CleanUpService" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing NotificationService" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing provisioningServiceImpl" logger=server
t=2020-09-23T10:16:34+0000 lvl=info msg="Backend rendering via phantomJS" logger=rendering renderer=phantomJS
t=2020-09-23T10:16:34+0000 lvl=warn msg="phantomJS is deprecated and will be removed in a future release. You should consider migrating from phantomJS to grafana-image-renderer plugin. Read more at https://grafana.com/docs/grafana/latest/administration/image_rendering/" logger=rendering renderer=phantomJS
t=2020-09-23T10:16:34+0000 lvl=info msg="Initializing Stream Manager"
t=2020-09-23T10:16:34+0000 lvl=info msg="HTTP Server Listen" logger=http.server address=[::]:3000 protocol=http subUrl=/monitoring socket=