catch exceptions from adding local scripts

apps/openmw/mwworld/localscripts.cpp

@@ -92,11 +92,20 @@ std::pair<std::string, MWWorld::Ptr> MWWorld::LocalScripts::getNext()
 void MWWorld::LocalScripts::add (const std::string& scriptName, const Ptr& ptr)
 {
     if (const ESM::Script *script = mStore.get<ESM::Script>().find (scriptName))
+    {
+        try
         {
             ptr.getRefData().setLocals (*script);
 
             mScripts.push_back (std::make_pair (scriptName, ptr));
         }
+        catch (const std::exception& exception)
+        {
+            std::cerr
+                << "failed to add local script " << scriptName
+                << " because an exception has been thrown: " << exception.what() << std::endl;
+        }
+    }
 }
 
 void MWWorld::LocalScripts::addCell (CellStore *cell)