ConfuserEx2_String_Decryptor Error

[y0gi9]

Unhandled Exception: System.IO.FileNotFoundException: Could not load file or assembly 'koi' or one of its dependencies. The system cannot find the file specified. ---> System.IO.FileNotFoundException: The system cannot find the file specified. (Exception from HRESULT: 0x80070002)
--- End of inner exception stack trace ---
at System.Reflection.RuntimeAssembly.GetModules(RuntimeAssembly assembly, Boolean loadIfNotFound, Boolean getResourceModules, ObjectHandleOnStack retModuleHandles)
at System.Reflection.RuntimeAssembly.GetModulesInternal(Boolean loadIfNotFound, Boolean getResourceModules)
at System.Reflection.RuntimeAssembly.GetModules(Boolean getResourceModules)
at ConfuserEx2_String_Decryptor.Program.Main(String[] args)

Any guidance in the right direction will greatly be appreciated.