1.7.10 compatibility

apis/meAdapter.lua

@@ -69,10 +69,15 @@ function MEAdapter:init(args)
 end
 
 function MEAdapter:isValid()
+  pcall(function()
     return self.getAvailableItems and self.getAvailableItems()
+  end)
 end
 
 function MEAdapter:refresh()
+  self.items = nil
+
+  local s, m = pcall(function()
     self.items = self.getAvailableItems('all')
     for _,v in pairs(self.items) do
       Util.merge(v, v.item)
@@ -82,10 +87,17 @@ function MEAdapter:refresh()
         itemDB:add(v, v)
       end
     end
+  end)
   itemDB:flush()
 
+  if not s and m then
+    debug(m)
+  end
+
+  if s and not Util.empty(self.items) then
     return self.items
   end
+end
 
 function MEAdapter:listItems()
   self:refresh()