Fixed error if API version not received.

Author: mikeller

src/SCRIPTS/BF/ui.lua

@@ -356,7 +356,7 @@ function run_ui(event)
     end
     while Page == nil do
         Page = assert(loadScript(radio.templateHome .. PageFiles[currentPage]))()
-        if Page.requiredVersion and Page.requiredVersion > apiVersion then
+        if Page.requiredVersion and apiVersion and Page.requiredVersion > apiVersion then
             incPage(1)
         end
     end