diff --git a/src/pages/KeyPage/Key.Page.tsx b/src/pages/KeyPage/Key.Page.tsx
index 35d91d9..30ba292 100644
--- a/src/pages/KeyPage/Key.Page.tsx
+++ b/src/pages/KeyPage/Key.Page.tsx
@@ -104,14 +104,17 @@ const KeyPage = () => {
 	const handleOpenSettingsModal = () => handleOpen(MODAL_PARAMS_KEYS.SETTINGS)
 
 	useEffect(() => {
-		if (swr) {
-			const isBackgroundEnable = swr.pushManager.getSubscription()
-			if (!isBackgroundEnable) {
-				setShowWarning(true)
-			} else {
-				setShowWarning(false)
+		const checkBackgroundSigning = async () => {
+			if (swr) {
+				const isBackgroundEnable = await swr.pushManager.getSubscription()
+				if (!isBackgroundEnable) {
+					setShowWarning(true)
+				} else {
+					setShowWarning(false)
+				}
 			}
 		}
+		checkBackgroundSigning()
 	}, [])
 
 	const handleEnableBackground = async () => {
diff --git a/src/utils/consts.ts b/src/utils/consts.ts
index 65e7390..c786acc 100644
--- a/src/utils/consts.ts
+++ b/src/utils/consts.ts
@@ -1,4 +1,3 @@
 export const NIP46_RELAYS = ['wss://relay.login.nostrapps.org']
 export const NOAUTHD_URL = process.env.REACT_APP_NOAUTHD_URL
 export const WEB_PUSH_PUBKEY = process.env.REACT_APP_WEB_PUSH_PUBKEY
-