diff --git a/hwe/func.php b/hwe/func.php
index cb12a464..20a387ff 100644
--- a/hwe/func.php
+++ b/hwe/func.php
@@ -1790,7 +1790,7 @@ function deleteNation(General $lord, bool $applyDB): array
     $nation['aux'] = Json::decode($nation['aux']);
     $nation['msg'] = $nationStor->nationNotice['msg'] ?? '';
     $nation['scout_msg'] = $nationStor->scout_msg;
-    $nation['aux'] += $nationStor->max_power;
+    $nation['aux'] += $nationStor->max_power ?? [];
     $nation['history'] = getNationHistoryLogAll($nationID);
 
     $josaYi = JosaUtil::pick($nationName, '이');
diff --git a/hwe/func_gamerule.php b/hwe/func_gamerule.php
index 6ecfe45b..ec20b72c 100644
--- a/hwe/func_gamerule.php
+++ b/hwe/func_gamerule.php
@@ -1164,7 +1164,7 @@ function checkEmperior()
     $nation['aux'] = Json::decode($nation['aux']);
     $nation['msg'] = $nationStor->nationNotice['msg'] ?? '';;
     $nation['scout_msg'] = $nationStor->scout_msg;
-    $nation['aux'] += $nationStor->max_power;
+    $nation['aux'] += $nationStor->max_power ?? [];
     $nation['history'] = getNationHistoryLogAll($nation['nation']);
 
     storeOldGenerals(0, $admin['year'], $admin['month']);