Fix data corruption when user pair an elder DLL

UnitXP_SP3_Addon.lua

@@ -214,6 +214,12 @@ local function UnitXP_SP3_combatTextSP3(enable)
         return false;
     end
 
+    if type(result) ~= "boolean" then
+        result = false;
+        UnitXP_SP3_Print(
+            "UnitXP_SP3.dll failed to execute \"combatTextSP3\". You might need to update UnitXP_SP3.dll to support this method.");
+    end
+
     return result;
 end
 
@@ -238,6 +244,12 @@ local function UnitXP_SP3_combatTextSP3_fontSize(size)
         return UnitXP_SP3_Addon["combatTextSP3_fontSize"];
     end
 
+    if type(result) ~= "number" then
+        result = 40;
+        UnitXP_SP3_Print(
+            "UnitXP_SP3.dll failed to execute \"combatTextSP3 setFontSize\". You might need to update UnitXP_SP3.dll to support this method.");
+    end
+
     UnitXP_SP3_Addon["combatTextSP3_fontSize"] = result;
     return UnitXP_SP3_Addon["combatTextSP3_fontSize"];
 end
@@ -254,6 +266,12 @@ local function UnitXP_SP3_combatTextSP3_fontName(name)
         return UnitXP_SP3_Addon["combatTextSP3_fontName"];
     end
 
+    if type(result) ~= "string" then
+        result = "Cambria";
+        UnitXP_SP3_Print(
+            "UnitXP_SP3.dll failed to execute \"combatTextSP3 setFontName\". You might need to update UnitXP_SP3.dll to support this method.");
+    end
+
     UnitXP_SP3_Addon["combatTextSP3_fontName"] = result;
     return UnitXP_SP3_Addon["combatTextSP3_fontName"];
 end
@@ -270,6 +288,12 @@ local function UnitXP_SP3_combatTextSP3_nameplateHeight(size)
         return UnitXP_SP3_Addon["combatTextSP3_nameplateHeight"];
     end
 
+    if type(result) ~= "number" then
+        result = 55;
+        UnitXP_SP3_Print(
+            "UnitXP_SP3.dll failed to execute \"combatTextSP3 setNameplateHeight\". You might need to update UnitXP_SP3.dll to support this method.");
+    end
+
     UnitXP_SP3_Addon["combatTextSP3_nameplateHeight"] = result;
     return UnitXP_SP3_Addon["combatTextSP3_nameplateHeight"];
 end
@@ -827,7 +851,7 @@ end
 
 function UnitXP_SP3_OnEvent(event)
     if event == "ADDON_LOADED" and arg1 == "UnitXP_SP3_Addon" then
-        local dataVersion = 32;
+        local dataVersion = 33;
         if UnitXP_SP3_Addon == nil or UnitXP_SP3_Addon["dataVersion"] ~= dataVersion then
             UnitXP_SP3_Addon = {};
             UnitXP_SP3_Addon["dataVersion"] = dataVersion;