Update install.lua

diff --git a/ElvUI_SLE/core/install.lua b/ElvUI_SLE/core/install.lua
index 53a9ae3..48e15fd 100644
--- a/ElvUI_SLE/core/install.lua
+++ b/ElvUI_SLE/core/install.lua
@@ -221,13 +221,15 @@ function E:SetupTheme(theme, noDisplayMsg)
 	if not noDisplayMsg then
 		E:UpdateAll(true)
 	end
-
-	InstallStatus:SetStatusBarColor(unpack(E['media'].rgbvaluecolor))
-
-	if InstallStepComplete and not noDisplayMsg then
-		InstallStepComplete.message = L["Theme Set"]
-		InstallStepComplete:Show()
-	end
+
+	if InstallStatus then
+		InstallStatus:SetStatusBarColor(unpack(E['media'].rgbvaluecolor))
+
+		if InstallStepComplete and not noDisplayMsg then
+			InstallStepComplete.message = L["Theme Set"]
+			InstallStepComplete:Show()
+		end
+	end
 end

 function E:SetupResolution(noDataReset)