Fix crash with nil messages

prog2/BlackJack.lua

@@ -24,6 +24,11 @@ local function interactWithCard(userUUID, mode, money)
                 sleep(30)
                 --shell.run("reboot")
             end
+            if not message then
+                print("WTF!? I got a rednet message with no data!?")
+                print("Rebooting...")
+                sleep(5)
+            end
             if message.type == "account_data" and message.cardId == cardUUID then
                 local money = message.balance
                 local playerUUID = message.uuid

prog2/Slot.lua

@@ -25,6 +25,11 @@ local function interactWithCard(userUUID, mode, money)
                 sleep(30)
                 --shell.run("reboot")
             end
+            if not message then
+                print("WTF!? I got a rednet message with no data!?")
+                print("Rebooting...")
+                sleep(5)
+            end
             if message.type == "account_data" and message.cardId == cardUUID then
                 local money = message.balance
                 local playerUUID = message.uuid
@@ -37,6 +42,7 @@ local function interactWithCard(userUUID, mode, money)
 end
 
 
+
 sleep(0.25)
 
 nfc = peripheral.wrap("bottom")

prog2/slotV2.lua

@@ -1,6 +1,7 @@
 --slot2
 rednet.open("back")
 
+
 local function interactWithCard(userUUID, mode, money)
 if mode == "updateBalance" then
   rednet.broadcast({
@@ -24,6 +25,11 @@ local function interactWithCard(userUUID, mode, money)
         sleep(30)
         --shell.run("reboot")
       end
+      if not message then
+        print("WTF!? I got a rednet message with no data!?")
+        print("Rebooting...")
+        sleep(5)
+      end
       if message.type == "account_data" and message.cardId == cardUUID then
         local money = message.balance
         local playerUUID = message.uuid
@@ -35,6 +41,7 @@ local function interactWithCard(userUUID, mode, money)
   end
 end
 
+
 os.pullEvent= function(...)
     while true do
         local t = table.pack(os.pullEventRaw(...))