Broadcast error messages within Cluster.getConnectionStatus

Signed-off-by: Sebastian Malton <sebastian@malton.name>

src/common/cluster/cluster.ts

@@ -560,6 +560,8 @@ export class Cluster implements ClusterModel {
         const message = String(error.error || error.message) || String(error);
 
         this.broadcastConnectUpdate(message, true);
+      } else if (error instanceof Error || typeof error === "string") {
+        this.broadcastConnectUpdate(`${error}`, true);
       } else {
         this.broadcastConnectUpdate("Unknown error has occurred", true);
       }