diff --git a/src/main/resources/assets/sophisticatedbackpacks/lang/zh_cn.json b/src/main/resources/assets/sophisticatedbackpacks/lang/zh_cn.json
index b88f3d51..ea72b4d8 100644
--- a/src/main/resources/assets/sophisticatedbackpacks/lang/zh_cn.json
+++ b/src/main/resources/assets/sophisticatedbackpacks/lang/zh_cn.json
@@ -48,7 +48,7 @@
     "item.sophisticatedbackpacks.refill_upgrade": "补货升级",
     "item.sophisticatedbackpacks.refill_upgrade.tooltip": "使所选物品在玩家物品栏中自动补充至一组",
     "item.sophisticatedbackpacks.advanced_refill_upgrade": "高级补货升级",
-    "item.sophisticatedbackpacks.advanced_refill_upgrade.tooltip": "使所选物品在玩家物品栏中自动补充至一组\n更精准的目标槽位选择\n可使用鼠标中间从背包中选取方块",
+    "item.sophisticatedbackpacks.advanced_refill_upgrade.tooltip": "使所选物品在玩家物品栏中自动补充至一组\n更精准的目标槽位选择\n可使用鼠标中键从背包中选取方块",
     "item.sophisticatedbackpacks.inception_upgrade": "嵌套升级",
     "item.sophisticatedbackpacks.inception_upgrade.tooltip": "使背包套背包成为可能",
     "item.sophisticatedbackpacks.everlasting_upgrade": "永恒升级",
@@ -192,6 +192,7 @@
     "gui.sophisticatedbackpacks.error.add.inception_exists": "另一插槽中已存在嵌套升级",
     "gui.sophisticatedbackpacks.error.remove.inception_sub_backpack": "该背包中有一个或多个背包",
     "gui.sophisticatedbackpacks.error.add.tool_swapper_exists": "另一插槽中已存在工具替换升级",
+    "gui.sophisticatedbackpacks.error.add.everlasting_exists": "另一插槽中已存在永恒升级",
     "gui.sophisticatedbackpacks.settings.buttons.another_player_can_open.on": "其他玩家可以打开",
     "gui.sophisticatedbackpacks.settings.buttons.another_player_can_open.on.tooltip": "当该背包被穿戴且设置为可见时，其他玩家可以对该玩家后背右击打开它",
     "gui.sophisticatedbackpacks.settings.buttons.another_player_can_open.off": "其他玩家不可打开",