Don't call posthog before its initialised

src/ClientContext.tsx

@@ -343,7 +343,8 @@ export const ClientProvider: FC<Props> = ({ children }) => {
     window.matrixclient = client;
     window.isPasswordlessUser = isPasswordlessUser;
 
-    PosthogAnalytics.instance.onLoginStatusChanged();
+    if (PosthogAnalytics.hasInstance())
+      PosthogAnalytics.instance.onLoginStatusChanged();
   }, [client, isPasswordlessUser]);
 
   if (error) {

src/analytics/PosthogAnalytics.ts

@@ -102,6 +102,10 @@ export class PosthogAnalytics {
   private platformSuperProperties = {};
   private registrationType: RegistrationType = RegistrationType.Guest;
 
+  public static hasInstance(): boolean {
+    return Boolean(this.internalInstance);
+  }
+
   public static get instance(): PosthogAnalytics {
     if (!this.internalInstance) {
       this.internalInstance = new PosthogAnalytics(posthog);