From 6bbc9177f6ed60c7eeaf94e66921ebc0a3e91e76 Mon Sep 17 00:00:00 2001
From: Ross Bulat <ross@jkrb.io>
Date: Sat, 2 Nov 2024 11:32:03 +0700
Subject: [PATCH] fix: era subscription bug

---
 src/model/Subscribe/ActiveEra/index.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/model/Subscribe/ActiveEra/index.ts b/src/model/Subscribe/ActiveEra/index.ts
index b12ff7e93..79f3f4848 100644
--- a/src/model/Subscribe/ActiveEra/index.ts
+++ b/src/model/Subscribe/ActiveEra/index.ts
@@ -49,6 +49,12 @@ export class ActiveEra implements Unsubscribable {
           // determine activeEra: toString used as alternative to `toHuman`, that puts commas in
           // numbers
           const activeEra = JSON.parse(result.unwrapOrDefault().toString());
+
+          // Return early if errornous active era is returned.
+          if (activeEra.index === 0 || !activeEra.start) {
+            return;
+          }
+
           // Store active era.
           this.activeEra = {
             index: new BigNumber(activeEra.index),