diff --git a/navi-chat/src/main/java/com/navi/chat/utils/ChatJsonDeserializer.kt b/navi-chat/src/main/java/com/navi/chat/utils/ChatJsonDeserializer.kt
index e88d751944..06315dc880 100644
--- a/navi-chat/src/main/java/com/navi/chat/utils/ChatJsonDeserializer.kt
+++ b/navi-chat/src/main/java/com/navi/chat/utils/ChatJsonDeserializer.kt
@@ -39,13 +39,18 @@ object ChatJsonDeserializer : JsonDeserializer<NaviChatWidget> {
         context: JsonDeserializationContext?,
     ): NaviChatWidget? {
         json?.let {
-            val rtCreatedAt = it.asJsonObject[NAVI_CHAT_RT_CREATED_AT]
+            var timestamp = Timestamp(0, 0)
             val jsonObject = it.asJsonObject
-            val timestamp =
-                Timestamp(
-                    rtCreatedAt.asJsonObject["seconds"].asLong,
-                    rtCreatedAt.asJsonObject["nanos"].asInt
-                )
+            val rtCreatedAt = jsonObject?.get(NAVI_CHAT_RT_CREATED_AT)
+            if (rtCreatedAt?.isJsonObject == true && !rtCreatedAt.isJsonNull) {
+                rtCreatedAt.asJsonObject?.let { rtCreatedAtObject ->
+                    val seconds = rtCreatedAtObject.get("seconds")
+                    val nanos = rtCreatedAtObject.get("nanos")
+                    if (seconds?.isJsonNull == false && nanos?.isJsonNull == false) {
+                        timestamp = Timestamp(seconds.asLong, nanos.asInt)
+                    }
+                }
+            }
             if (!jsonObject.has(NAVI_CHAT_WIDGET_NAME)) {
                 return null
             }