PluginManager: catch errors during plugin flux handlers

src/plugins/index.ts

@@ -169,7 +169,18 @@ export function subscribePluginFluxEvents(p: Plugin, fluxDispatcher: typeof Flux
 
         logger.debug("Subscribing to flux events of plugin", p.name);
         for (const [event, handler] of Object.entries(p.flux)) {
-            fluxDispatcher.subscribe(event as FluxEvents, handler);
+            const wrappedHandler = p.flux[event] = function () {
+                try {
+                    const res = handler.apply(p, arguments as any);
+                    return res instanceof Promise
+                        ? res.catch(e => logger.error(`${p.name}: Error while handling ${event}\n`, e))
+                        : res;
+                } catch (e) {
+                    logger.error(`${p.name}: Error while handling ${event}\n`, e);
+                }
+            };
+
+            fluxDispatcher.subscribe(event as FluxEvents, wrappedHandler);
         }
     }
 }