How to use UserData in Selenoid?

Question

C++ / C#

Hello, I'm using Selenoid and I need to save a user session.
When I use

driverOptions.AddArgument($"--user-data-dir={path}");

I get an exception: unknown error: cannot create default profile directory
what is the problem I can’t understand, in the selenoid logs you can generally say empty

2020/04/26 12:22:23 [-] [NEW_REQUEST] [unknown] [134.249.126.131]
2020/04/26 12:22:23 [-] [NEW_REQUEST_ACCEPTED] [unknown] [134.249.126.131]
2020/04/26 12:22:23 [7876] [LOCATING_SERVICE] [chrome] []
2020/04/26 12:22:23 [-] [DEFAULT_VERSION] [Using default version: 81.0]
2020/04/26 12:22:23 [7876] [USING_DOCKER] [chrome] [81.0]
2020/04/26 12:22:23 [7876] [CREATING_CONTAINER] [selenoid/vnc_chrome:81.0]
2020/04/26 12:22:23 [7876] [STARTING_CONTAINER] [selenoid/vnc_chrome:81.0] [3f7dbd9ac8b4bd3054111f92ac8bf97852081d35f231323a32e20ccb3ef36f58]
2020/04/26 12:22:24 [7876] [CONTAINER_STARTED] [selenoid/vnc_chrome:81.0] [3f7dbd9ac8b4bd3054111f92ac8bf97852081d35f231323a32e20ccb3ef36f58] [0.32s]
2020/04/26 12:22:24 [7876] [SERVICE_STARTED] [selenoid/vnc_chrome:81.0] [3f7dbd9ac8b4bd3054111f92ac8bf97852081d35f231323a32e20ccb3ef36f58] [0.35s]
2020/04/26 12:22:24 [7876] [PROXY_TO] [3f7dbd9ac8b4bd3054111f92ac8bf97852081d35f231323a32e20ccb3ef36f58] [http://172.17.0.6:4444/]
2020/04/26 12:22:24 [7876] [SESSION_ATTEMPTED] [http://172.17.0.6:4444/] [1]
2020/04/26 12:22:24 [7876] [SESSION_FAILED] [http://172.17.0.6:4444/] [500 Internal Server Error]
2020/04/26 12:22:24 [7876] [REMOVING_CONTAINER] [3f7dbd9ac8b4bd3054111f92ac8bf97852081d35f231323a32e20ccb3ef36f58]
2020/04/26 12:22:24 [7876] [CONTAINER_REMOVED] [3f7dbd9ac8b4bd3054111f92ac8bf97852081d35f231323a32e20ccb3ef36f58]

Who did this please post!