Add one more check for not found dbs
diff --git a/src/smoosh/src/smoosh_channel.erl b/src/smoosh/src/smoosh_channel.erl
index b584736..b5ef19d 100644
--- a/src/smoosh/src/smoosh_channel.erl
+++ b/src/smoosh/src/smoosh_channel.erl
@@ -386,7 +386,12 @@
     Requests1 = lists:reverse(Requests0),
     Waiting2 = lists:foldl(
         fun({DbName, Priority}, Acc) ->
-            smoosh_priority_queue:in(DbName, Priority, Priority, Acc)
+            case exists(DbName) of
+                true ->
+                    smoosh_priority_queue:in(DbName, Priority, Priority, Acc);
+                false ->
+                    Acc
+            end
         end,
         Waiting1,
         Requests1