Is this plugin still working (with Mattermost 7.9)?

[ateuber]

I'm getting this error and I'm not sure if it's a problem with our instance or with the plugin:

{
  "caller": "plugin/client_rpc.go:268",
  "error": "unexpected EOF",
  "level": "error",
  "msg": "RPC call to OnActivate plugin failed.",
  "plugin_id": "com.mattermost.mailermost-plugin",
  "timestamp": "2023-04-26 21:43:46.667 +02:00"
}