Offline plugin installation - grafana image rendering

Greetings
I’m using a linux server which has no internet connection (internal network only), and I’d like to send email alerts with the image rendering plugin.

Is there a way to manually install it?

Thanks

I have tried by downloading the current release
https://github.com/grafana/grafana-image-renderer/releases/download/v1.0.8/plugin-linux-x64-glibc.zip
and then uploading it into folder under plugins
/data/plugins/grafana-imager-rendering

cli confirms it

./grafana-cli plugins ls
installed plugins:
grafana-image-renderer @ 1.0.8

everyting seems fine until I restart the server, then it starts throwing errors on screen.
log contains some info but I don’t know what to do with it

log content
t=2020-01-30T10:07:13+0100 lvl=info msg="Renderer plugin found, starting" logger=rendering cmd=plugin_start_linux_amd64
t=2020-01-30T10:07:13+0100 lvl=dbug msg="starting plugin" logger=rendering path=/adopt/grafana-6.1.2/data/plugins/grafana-imager-rendering/plugin_start_linux_amd64 args=[/adopt/grafana-6.1.2/data/plugins/grafana-imager-rendering/plugin_start_linux_amd64]
t=2020-01-30T10:07:13+0100 lvl=info msg="Initializing Stream Manager"
t=2020-01-30T10:07:13+0100 lvl=info msg="HTTP Server Listen" logger=http.server address=0.0.0.0:8443 protocol=https subUrl= socket=
t=2020-01-30T10:07:13+0100 lvl=dbug msg="Looking for App Dashboard Updates" logger=plugins
t=2020-01-30T10:07:13+0100 lvl=dbug msg="waiting for RPC address" logger=rendering path=/adopt/grafana-6.1.2/data/plugins/grafana-imager-rendering/plugin_start_linux_amd64
t=2020-01-30T10:07:14+0100 lvl=dbug msg="E0130 10:07:14.097142975    3146 server_chttp2.cc:40]        {\"created\":\"@1580375234.097114347\",\"description\":\"No address added out of total 1 resolved\",\"file\":\"../deps/grpc/src/core/ext/transport/chttp2/server/chttp2_server.cc\",\"file_line\":394,\"referenced_errors\":[{\"created\":\"@1580375234.097111774\",\"description\":\"Failed to add port to server\",\"file\":\"../deps/grpc/src/core/lib/iomgr/tcp_server_custom.cc\",\"file_line\":404,\"referenced_errors\":[{\"created\":\"@1580375234.097101015\",\"description\":\"Failed to initialize UV tcp handle\",\"file\":\"../deps/grpc/src/core/lib/iomgr/tcp_uv.cc\",\"file_line\":72,\"grpc_status\":14,\"os_error\":\"address family not supported\"}]}]}" logger=rendering
t=2020-01-30T10:07:14+0100 lvl=dbug msg="(node:3146) UnhandledPromiseRejectionWarning: Error: failed to bind address=127.0.0.1:0, boundPortNumber=0" logger=rendering
t=2020-01-30T10:07:14+0100 lvl=dbug msg="    at GrpcPlugin.<anonymous> (/snapshot/grafana-image-renderer/build/plugin/grpc-plugin.js:51:23)" logger=rendering
t=2020-01-30T10:07:14+0100 lvl=dbug msg="    at Generator.next (<anonymous>)" logger=rendering
t=2020-01-30T10:07:14+0100 lvl=dbug msg="    at __awaiter (/snapshot/grafana-image-renderer/build/plugin/grpc-plugin.js:7:71)" logger=rendering
t=2020-01-30T10:07:14+0100 lvl=dbug msg="    at new Promise (<anonymous>)" logger=rendering
t=2020-01-30T10:07:14+0100 lvl=dbug msg="    at __awaiter (/snapshot/grafana-image-renderer/build/plugin/grpc-plugin.js:3:12)" logger=rendering
t=2020-01-30T10:07:14+0100 lvl=dbug msg="    at GrpcPlugin.start (/snapshot/grafana-image-renderer/build/plugin/grpc-plugin.js:38:16)" logger=rendering
t=2020-01-30T10:07:14+0100 lvl=dbug msg="    at /snapshot/grafana-image-renderer/build/app.js:40:20" logger=rendering
t=2020-01-30T10:07:14+0100 lvl=dbug msg="    at Generator.next (<anonymous>)" logger=rendering
t=2020-01-30T10:07:14+0100 lvl=dbug msg="    at __awaiter (/snapshot/grafana-image-renderer/build/app.js:7:71)" logger=rendering
t=2020-01-30T10:07:14+0100 lvl=dbug msg="    at new Promise (<anonymous>)" logger=rendering
t=2020-01-30T10:07:14+0100 lvl=dbug msg="(node:3146) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)" logger=rendering
t=2020-01-30T10:07:14+0100 lvl=dbug msg="(node:3146) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code." logger=rendering
t=2020-01-30T10:07:14+0100 lvl=dbug msg="plugin process exited" logger=rendering path=/adopt/grafana-6.1.2/data/plugins/grafana-imager-rendering/plugin_start_linux_amd64
t=2020-01-30T10:07:14+0100 lvl=eror msg="Stopped RenderingService" logger=server reason="plugin exited before we could connect"