I installed duplicati on 2 different linux machines. One works good, the other crashes with a SIGABORT trying to backup its first job. This is on a ubuntu 16.04, and mono --version shows 5.4 What should I check?
Nov 19 11:15:05 vpn duplicati-server[119256]: Server has started and is listening on 0.0.0.0, port 8200
Nov 19 11:18:05 vpn duplicati-server[119256]: w32error-unix.c: unknown error (87) “Too many users”
Nov 19 11:18:05 vpn duplicati-server[119256]: Stacktrace:
Nov 19 11:18:05 vpn duplicati-server[119256]: at <0xffffffff>
Nov 19 11:18:05 vpn duplicati-server[119256]: at (wrapper managed-to-native) System.IO.MonoIO.FindFirstFile (string,string&,int&,int&) [0x00000] in <9790d962aaad40d
Nov 19 11:18:05 vpn duplicati-server[119256]: at System.IO.FileSystemEnumerableIterator1<TSource_REF>.CommonInit () [0x0001d] in <9790d962aaad40deb63d33029ba0d2f6> Nov 19 11:18:05 vpn duplicati-server[119256]: at System.IO.FileSystemEnumerableIterator
1<TSource_REF>…ctor (string,string,string,System.IO.SearchOption,System.IO.
Nov 19 11:18:05 vpn duplicati-server[119256]: at System.IO.FileSystemEnumerableFactory.CreateFileNameIterator (string,string,string,bool,bool,System.IO.SearchOption
Nov 19 11:18:05 vpn duplicati-server[119256]: at System.IO.Directory.InternalGetFileDirectoryNames (string,string,string,bool,bool,System.IO.SearchOption,bool) [0x0
Nov 19 11:18:05 vpn duplicati-server[119256]: at System.IO.Directory.InternalGetDirectories (string,string,System.IO.SearchOption) [0x00000] in <9790d962aaad40deb63
Nov 19 11:18:05 vpn duplicati-server[119256]: at System.IO.Directory.GetDirectories (string) [0x0000e] in <9790d962aaad40deb63d33029ba0d2f6>:0
Nov 19 11:18:05 vpn duplicati-server[119256]: at Duplicati.Library.Snapshots.NoSnapshot.ListFolders (string) [0x00000] in <77daa5b4404f4a3f88c47ead1428ebeb>:0
Nov 19 11:18:05 vpn duplicati-server[119256]: at Duplicati.Library.Utility.Utility/d__22.MoveNext () [0x0013c] in <1cb5198b00f34ae59d97e
Nov 19 11:18:05 vpn duplicati-server[119256]: at System.Linq.Enumerable/SelectManySingleSelectorIterator`2<TSource_REF, TResult_REF>.MoveNext () [0x0006f] in <7c7d1
Nov 19 11:18:05 vpn duplicati-server[119256]: at Duplicati.Library.Main.Operation.BackupHandler/FilterHandler/d__13.MoveNext () [0x000fe]
Nov 19 11:18:05 vpn duplicati-server[119256]: at Duplicati.Library.Main.Operation.BackupHandler.CountFilesThread (object) [0x000c5] in <118ad25945a24a3991f7b65e7a45
Nov 19 11:18:05 vpn duplicati-server[119256]: at System.Threading.ThreadHelper.ThreadStart_Context (object) [0x00025] in <9790d962aaad40deb63d33029ba0d2f6>:0
Nov 19 11:18:05 vpn duplicati-server[119256]: at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,o
Nov 19 11:18:05 vpn duplicati-server[119256]: at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bo
Nov 19 11:18:05 vpn duplicati-server[119256]: at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object) [
Nov 19 11:18:05 vpn duplicati-server[119256]: at System.Threading.ThreadHelper.ThreadStart (object) [0x0000f] in <9790d962aaad40deb63d33029ba0d2f6>:0
Nov 19 11:18:05 vpn duplicati-server[119256]: at (wrapper runtime-invoke) .runtime_invoke_void__this___object (object,intptr,intptr,intptr) [0x0004f] in <97