Unable to cast in csharp

KT1Nr4CLi7hY7QrZe8D4ar6uihpnr7nRtGJH On this contract we can't deploy because it's unable to cast

Unhandled exception. System.InvalidCastException: Unable to cast object of type 'MyTuple`2[idol.Token_address,idol.Token_id]' to type 'idol.Challenger'.
   at idol.Functions.challengerGenerator() in /home/arnaud/Desktop/wind/src/csharp_sdk/idol_csharp_interface.cs:line 824
   at idol.Functions.set_battleGenerator() in /home/arnaud/Desktop/wind/src/csharp_sdk/idol_csharp_interface.cs:line 854
   at FactoriTypes.Types.<>c__DisplayClass10_0`2.<DictionaryGenerator>b__0() in /home/arnaud/Desktop/wind/src/csharp_sdk/factori_types.cs:line 267
   at FactoriTypes.Types.<>c__DisplayClass197_0`2.<BigMapGenerator>b__0() in /home/arnaud/Desktop/wind/src/csharp_sdk/factori_types.cs:line 2736
   at idol.Functions._storageGenerator() in /home/arnaud/Desktop/wind/src/csharp_sdk/idol_csharp_interface.cs:line 1354
   at Deploy_scenario_idol.Main() in /home/arnaud/Desktop/wind/src/csharp_sdk/Deploy_scenario_idol.cs:line 9
   at Deploy_scenario_idol.<Main>()