Merge pull request #831 from blockscout/fix-log-event

fix log event

lib/mixpanel/logEvent.ts

 import mixpanel from 'mixpanel-browser';
 
+import appConfig from 'configs/app/config';
+
 import type { EventTypes, EventPayload } from './utils';
 
 type TrackFnArgs = Parameters<typeof mixpanel.track>;
@@ -10,5 +12,8 @@ export default function logEvent<EventType extends EventTypes>(
   optionsOrCallback?: TrackFnArgs[2],
   callback?: TrackFnArgs[3],
 ) {
+  if (!appConfig.mixpanel.projectToken) {
+    return;
+  }
   mixpanel.track(type, properties, optionsOrCallback, callback);
 }