the server does not load and puts this as an error in the log file
MissingFieldException: Field 'ProtoBuf.BasePlayer.underwear' not found.
at BaseNetworkable.ToStream (System.IO.Stream stream, BaseNetworkable + SaveInfo saveInfo) [0x00010] in <3c3858d85b3f446484d7891d67c74923>: 0
at BaseNetworkable.GetSaveCache () [0x00045] in <3c3858d85b3f446484d7891d67c74923>: 0
at SaveRestore.GetSaveCache () [0x00045] in <3c3858d85b3f446484d7891d67c74923>: 0
at Bootstrap + <StartServer> d__19.MoveNext () [0x002a1] in <3c3858d85b3f446484d7891d67c74923>: 0
at UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) [0x00026] in <7177b41a033a4f5591f89f18f64d312a>: 0
MissingFieldException: Field 'ProtoBuf.BasePlayer.underwear' not found.
at BaseNetworkable.ToStream (System.IO.Stream stream, BaseNetworkable + SaveInfo saveInfo) [0x00010] in <3c3858d85b3f446484d7891d67c74923>: 0
at BaseNetworkable.GetSaveCache () [0x00045] in <3c3858d85b3f446484d7891d67c74923>: 0
at SaveRestore.GetSaveCache () [0x00045] in <3c3858d85b3f446484d7891d67c74923>: 0
at Bootstrap + <StartServer> d__19.MoveNext () [0x002a1] in <3c3858d85b3f446484d7891d67c74923>: 0
at UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) [0x00026] in <7177b41a033a4f5591f89f18f64d312a>: 0