diff --git a/modules/show_inventory.lua b/modules/show_inventory.lua
index 81eb6ec28..ef0d008a6 100644
--- a/modules/show_inventory.lua
+++ b/modules/show_inventory.lua
@@ -124,7 +124,7 @@ local function validate_player(player)
     if not player.connected then
         return false
     end
-    if not game.players[player.index] then
+    if not game.get_player(player.index) then
         return false
     end
     return true
@@ -331,7 +331,7 @@ local function open_inventory(source, target)
 end
 
 local function on_gui_click(event)
-    local player = game.players[event.player_index]
+    local player = game.get_player(event.player_index)
     if not this.data[player.index] then
         return
     end
@@ -384,7 +384,7 @@ local function on_gui_click(event)
     end
 end
 local function gui_closed(event)
-    local player = game.players[event.player_index]
+    local player = game.get_player(event.player_index)
     if not this.data[player.index] then
         return
     end
@@ -401,7 +401,7 @@ local function gui_closed(event)
 end
 
 local function on_pre_player_left_game(event)
-    local player = game.players[event.player_index]
+    local player = game.get_player(event.player_index)
     if not this.data[player.index] then
         return
     end
@@ -443,7 +443,7 @@ commands.add_command(
             if not cmd.parameter then
                 return
             end
-            local target_player = game.players[cmd.parameter]
+            local target_player = game.get_player(cmd.parameter)
 
             if target_player == player and not player.admin then
                 return player.print('Cannot open self.', Color.warning)
diff --git a/utils/gui/group.lua b/utils/gui/group.lua
index 549ad3028..16b938d0b 100644
--- a/utils/gui/group.lua
+++ b/utils/gui/group.lua
@@ -19,7 +19,7 @@ local this = {
         ['Production'] = {name = 'Production', founder = 'script', description = '[img=item/assembling-machine-1]', static = true},
         ['Science'] = {name = 'Science', founder = 'script', description = '[img=item/chemical-science-pack]', static = true},
         ['Trainman'] = {name = 'Trainman', founder = 'script', description = '[img=item/locomotive]', static = true},
-        ['Oil processing'] = {name = 'processing', founder = 'script', description = '[img=fluid/crude-oil]', static = true},
+        ['Oil processing'] = {name = 'Oil Processing', founder = 'script', description = '[img=fluid/crude-oil]', static = true},
         ['Trooper'] = {name = 'Trooper', founder = 'script', description = '[img=item/submachine-gun]', static = true},
         ['Fortifications'] = {name = 'Fortifications', founder = 'script', description = '[img=item/stone-wall]', static = true},
         ['Support'] = {name = 'Support', founder = 'script', description = '[img=item/repair-pack]', static = true}
diff --git a/utils/gui/player_list.lua b/utils/gui/player_list.lua
index 487ce2c88..f69f345b8 100644
--- a/utils/gui/player_list.lua
+++ b/utils/gui/player_list.lua
@@ -155,7 +155,13 @@ local function get_sorted_list(sort_by)
             player_data.admin = player.admin
             player_data.color = player.color
             player_data.index = player.index
-            player_data.coins = player.get_inventory(defines.inventory.character_main).get_item_count('coin') or 0
+            local inventory = player.get_main_inventory()
+            if inventory and inventory.valid then
+                local player_item_count = inventory.get_item_count('coin')
+                player_data.coins = player_item_count
+            else
+                player_data.coins = 0
+            end
 
             player_data.played_time = get_formatted_playtime(player.online_time)
             player_data.played_ticks = player.online_time