Server going from 1.17 to 1.19

[ImmortalAndrew]

Please help:

 

I wanted to switch my server to 1.17 to 1.19 and everytime i try to connect it says this: 

I've been trying to figure out what is wrong for the last 24 hours. I even uninstalled all my add-ons, and it still doesn't work. These are the logs: 

[20:46:08] [ServerMain/INFO]: Building unoptimized datafixer
[20:46:09] [ServerMain/ERROR]: 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 2 path $
    at net.minecraft.util.GsonHelper.fromJson(GsonHelper.java:427) ~[?:?]
    at net.minecraft.util.GsonHelper.parse(GsonHelper.java:477) ~[?:?]
    at net.minecraft.util.GsonHelper.parse(GsonHelper.java:473) ~[?:?]
    at net.minecraft.util.GsonHelper.parse(GsonHelper.java:481) ~[?:?]
    at net.minecraft.server.dedicated.DedicatedServerProperties.lambda$new$2(DedicatedServerProperties.java:152) ~[paper-1.19.jar:git-Paper-8]
    at net.minecraft.server.dedicated.Settings.get(Settings.java:184) ~[?:?]
    at net.minecraft.server.dedicated.Settings.get(Settings.java:207) ~[?:?]
    at net.minecraft.server.dedicated.DedicatedServerProperties.<init>(DedicatedServerProperties.java:151) ~[paper-1.19.jar:git-Paper-8]
    at net.minecraft.server.dedicated.DedicatedServerProperties.fromFile(DedicatedServerProperties.java:165) ~[paper-1.19.jar:git-Paper-8]
    at net.minecraft.server.dedicated.DedicatedServerSettings.<init>(DedicatedServerSettings.java:19) ~[paper-1.19.jar:git-Paper-8]
    at net.minecraft.server.Main.main(Main.java:111) ~[paper-1.19.jar:git-Paper-8]
    at org.bukkit.craftbukkit.Main.main(Main.java:294) ~[paper-1.19.jar:git-Paper-8]
    at io.papermc.paperclip.Paperclip.lambda$main$0(Paperclip.java:42) ~[app:?]
    at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 2 path $
    at com.google.gson.stream.JsonReader.syntaxError(JsonReader.java:1562) ~[gson-2.8.9.jar:?]
    at com.google.gson.stream.JsonReader.checkLenient(JsonReader.java:1403) ~[gson-2.8.9.jar:?]
    at com.google.gson.stream.JsonReader.nextNonWhitespace(JsonReader.java:1354) ~[gson-2.8.9.jar:?]
    at com.google.gson.stream.JsonReader.doPeek(JsonReader.java:548) ~[gson-2.8.9.jar:?]
    at com.google.gson.stream.JsonReader.peek(JsonReader.java:424) ~[gson-2.8.9.jar:?]
    at com.google.gson.internal.bind.TypeAdapters$27.read(TypeAdapters.java:661) ~[gson-2.8.9.jar:?]
    at com.google.gson.internal.bind.TypeAdapters$27.read(TypeAdapters.java:655) ~[gson-2.8.9.jar:?]
    at com.google.gson.internal.bind.TypeAdapters$33$1.read(TypeAdapters.java:866) ~[gson-2.8.9.jar:?]
    at net.minecraft.util.GsonHelper.fromJson(GsonHelper.java:425) ~[?:?]
    ... 13 more