diff --git a/lib/jekyll-multiple-languages-plugin.rb b/lib/jekyll-multiple-languages-plugin.rb
index 190b705..078f6b8 100644
--- a/lib/jekyll-multiple-languages-plugin.rb
+++ b/lib/jekyll-multiple-languages-plugin.rb
@@ -629,7 +629,12 @@ class TranslatedString < String
   # initialize
   #======================================
   def initialize(*several_variants, key)
-    super(*several_variants)
+    begin
+      super(*several_variants)
+    rescue TypeError => e
+      puts "Error when translating key: #{key}"
+      raise e
+    end
     @key = key
   end