This the consol:

ENDE

01.11 19:53:06 [Multicraft] Server stopped
01.11 19:53:06 [Multicraft] Not restarting crashed server.
01.11 19:53:06 [Multicraft] Server shut down (starting)
01.11 19:53:05 [Server] INFO at abh.a(SourceFile:494) ~[server.jar:?]
01.11 19:53:05 [Server] INFO at com.google.gson.internal.bind.TypeAdapters$35$1.read(TypeAdapters.java:910) ~[server.jar:?]
01.11 19:53:05 [Server] INFO at com.google.gson.internal.bind.TypeAdapters$29.read(TypeAdapters.java:714) ~[server.jar:?]
01.11 19:53:05 [Server] INFO at com.google.gson.internal.bind.TypeAdapters$29.read(TypeAdapters.java:716) ~[server.jar:?]
01.11 19:53:05 [Server] INFO at com.google.gson.stream.JsonReader.peek(JsonReader.java:425) ~[server.jar:?]
01.11 19:53:05 [Server] INFO at com.google.gson.stream.JsonReader.doPeek(JsonReader.java:593) ~[server.jar:?]
01.11 19:53:05 [Server] INFO at com.google.gson.stream.JsonReader.checkLenient(JsonReader.java:1401) ~[server.jar:?]
01.11 19:53:05 [Server] INFO at com.google.gson.stream.JsonReader.syntaxError(JsonReader.java:1559) ~[server.jar:?]
01.11 19:53:05 [Server] INFO Caused by: com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 1 path $
01.11 19:53:05 [Server] INFO at java.lang.Thread.run(Thread.java:748) [?:1.8.0_211]
01.11 19:53:05 [Server] INFO at net.minecraft.server.MinecraftServer.run(SourceFile:623) [server.jar:?]
01.11 19:53:05 [Server] INFO at wa.d(SourceFile:216) ~[server.jar:?]
01.11 19:53:05 [Server] INFO at abh.a(SourceFile:551) ~[server.jar:?]
01.11 19:53:05 [Server] INFO at abh.a(SourceFile:543) ~[server.jar:?]
01.11 19:53:05 [Server] INFO at abh.a(SourceFile:547) ~[server.jar:?]
01.11 19:53:05 [Server] INFO at abh.a(SourceFile:496) ~[server.jar:?]
01.11 19:53:05 [Server] INFO com.google.gson.JsonParseException: com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 1 path $
01.11 19:53:05 [Server] Server thread/ERROR Encountered an unexpected exception
01.11 19:53:05 [Server] Server thread/INFO Preparing level "world"
01.11 19:53:05 [Server] Server thread/INFO Using epoll channel type
01.11 19:53:05 [Server] Server thread/INFO Starting Minecraft server on 37.114.40.176:25565
01.11 19:53:05 [Server] Server thread/INFO Generating keypair
01.11 19:53:05 [Server] Server thread/INFO Default game type: SURVIVAL
01.11 19:53:05 [Server] Server thread/INFO Loading properties
01.11 19:53:05 [Server] Server thread/INFO Starting minecraft server version 19w44a
01.11 19:53:05 [Server] main/WARN Ambiguity between arguments [teleport, targets, location] and [teleport, targets, destination] with inputs: [0.1 -0.5 .9, 0 0 0]
01.11 19:53:05 [Server] main/WARN Ambiguity between arguments [teleport, targets] and [teleport, destination] with inputs: [Player, 0123, dd12be42-52a9-4a91-a8a1-11c01849e498]
01.11 19:53:05 [Server] main/WARN Ambiguity between arguments [teleport, location] and [teleport, targets] with inputs: [0.1 -0.5 .9, 0 0 0]
01.11 19:53:05 [Server] main/WARN Ambiguity between arguments [teleport, location] and [teleport, destination] with inputs: [0.1 -0.5 .9, 0 0 0]
01.11 19:53:05 [Server] main/WARN Ambiguity between arguments [teleport, destination] and [teleport, targets] with inputs: [Player, 0123, @e, dd12be42-52a9-4a91-a8a1-11c01849e498]
01.11 19:52:58 [Multicraft] Updating eula.txt file
01.11 19:52:58 [Multicraft] Loaded config for "Default Minecraft Server"
01.11 19:52:58 [Multicraft] Starting server!
01.11 19:52:58 [Multicraft] Loading server properties
01.11 19:52:53 [Multicraft] Server stopped
01.11 19:52:53 [Multicraft] Received restart command
01.11 19:52:47 [Multicraft] Loading server properties

BEGINN

So when it isn't a bug, please write my in the comments, how I can fix it. Thx Luki2811