Stack Modifier Not Working

I get this message in me web when I tried to open me stack modifier on the game:

[Stack Modifier] foreach threw Exception: Diving Fins, 296519935, diving.fins 1, False

Failed to run command '/stackmodifier' on plugin 'StackModifier'. (KeyNotFoundException: The given key 'diving.fins' was not present in the dictionary.) at System.Collections.Generic.Dictionary`2[TKey,TValue].get_Item (TKey key) [0x0001e] in :0 at Oxide.Plugins.StackModifier.CreateEditorItemEntry (Oxide.Plugins.StackModifier+_Items dataItem, System.Single ymax, System.Single ymin, System.String catName, System.String text) [0x0023f] in :0 at Oxide.Plugins.StackModifier.ShowEditor (BasePlayer player, System.String catid, System.Int32 from, System.Boolean fullPaint, System.Boolean refreshMultipler, System.Boolean filter, System.String input) [0x00632] in :0 at Oxide.Plugins.StackModifier.CmdModify (BasePlayer player, System.String command, System.String[] args) [0x00066] in :0 at Oxide.Game.Rust.Libraries.Command+ChatCommand.HandleCommand (BasePlayer sender, System.String name, System.String[] args) [0x0001b] in :0 at Oxide.Game.Rust.Libraries.Command.HandleChatCommand (BasePlayer sender, System.String name, System.String[] args) [0x00015] in :0 at Oxide.Game.Rust.RustCore.TryRunPlayerCommand (BasePlayer basePlayer, System.String message, System.String commandPrefix) [0x000c2] in :0

Many Thanks

same here

Changed Status from Pending to Closed

Changed Fixed In to 2.5.8