My server wont Start

[ChompzApple]

Having problems with my server, it's refusing to start up, and this keeps happening:

 

I click the start button, however it just either does nothing, or it says its starting and then returns to what is shown above. i dont know what to do, can someone potentially help out with this issue please, and thank you.

[BurningBrimstone]

Hello! Please send your server logs so we can further investigate the issue.

How to access server logs:

 

[ChompzApple]

@Brim    

[04:26:56] [main/FATAL]: Failed to start the minecraft server
com.google.gson.JsonParseException: com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 1 path $
    at net.minecraft.server.v1_16_R3.ChatDeserializer.a(SourceFile:495) ~[server.jar:git-Paper-"b89788a"]
    at net.minecraft.server.v1_16_R3.ChatDeserializer.a(SourceFile:545) ~[server.jar:git-Paper-"b89788a"]
    at net.minecraft.server.v1_16_R3.ChatDeserializer.a(SourceFile:541) ~[server.jar:git-Paper-"b89788a"]
    at net.minecraft.server.v1_16_R3.ChatDeserializer.a(SourceFile:549) ~[server.jar:git-Paper-"b89788a"]
    at net.minecraft.server.v1_16_R3.GeneratorSettings.a(SourceFile:217) ~[server.jar:git-Paper-"b89788a"]
    at net.minecraft.server.v1_16_R3.DedicatedServerProperties.<init>(DedicatedServerProperties.java:117) ~[server.jar:git-Paper-"b89788a"]
    at net.minecraft.server.v1_16_R3.DedicatedServerProperties.load(DedicatedServerProperties.java:122) ~[server.jar:git-Paper-"b89788a"]
    at net.minecraft.server.v1_16_R3.DedicatedServerSettings.<init>(DedicatedServerSettings.java:17) ~[server.jar:git-Paper-"b89788a"]
    at net.minecraft.server.v1_16_R3.Main.main(Main.java:64) ~[server.jar:git-Paper-"b89788a"]
    at org.bukkit.craftbukkit.Main.main(Main.java:276) ~[server.jar:git-Paper-"b89788a"]
Caused by: com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 1 path $
    at com.google.gson.stream.JsonReader.syntaxError(JsonReader.java:1559) ~[server.jar:git-Paper-"b89788a"]
    at com.google.gson.stream.JsonReader.checkLenient(JsonReader.java:1401) ~[server.jar:git-Paper-"b89788a"]
    at com.google.gson.stream.JsonReader.doPeek(JsonReader.java:593) ~[server.jar:git-Paper-"b89788a"]
    at com.google.gson.stream.JsonReader.peek(JsonReader.java:425) ~[server.jar:git-Paper-"b89788a"]
    at com.google.gson.internal.bind.TypeAdapters$29.read(TypeAdapters.java:716) ~[server.jar:git-Paper-"b89788a"]
    at com.google.gson.internal.bind.TypeAdapters$29.read(TypeAdapters.java:714) ~[server.jar:git-Paper-"b89788a"]
    at com.google.gson.internal.bind.TypeAdapters$35$1.read(TypeAdapters.java:910) ~[server.jar:git-Paper-"b89788a"]
    at net.minecraft.server.v1_16_R3.ChatDeserializer.a(SourceFile:493) ~[server.jar:git-Paper-"b89788a"]
    ... 9 more

[BurningBrimstone]

Thanks! Seems to be an issue with these files:

ops.json, whitelist.json, banned-players.json, banned-ips.json, usercache.json, version_history.json

Please shut down your server, delete them, and restart your server. They're found in the File Manager.

Note that this will reset your operators, whitelisted players, banned players, banned ips, and your saved players (though not playerdata like inventories!).