Minecraft Version

1.21.x

Mod Loader Version

fabtic 0.16.10

Mod Version

1.4.24

Describe the Issue

My friends in my server tamed the dragon. after that he got disconnected and after he got back, the dragon is gone

latest.log

[00:09:52] [Server thread/INFO]: Quan2006 lost connection: Disconnected
[00:09:52] [Server thread/INFO]: Quan2006 left the game
[00:30:41] [Server thread/INFO]: IheatC has made the advancement [The Eye]
[00:31:40] [Server thread/INFO]: nam fell from a high place
[00:31:50] [Server thread/INFO]: [nam: Teleported nam to IheatC]
[01:24:31] [Server thread/INFO]: IheatC lost connection: Timed out
[01:24:31] [Server thread/INFO]: IheatC left the game
[01:24:31] [Server thread/WARN]: handleDisconnection() called twice
[01:24:35] [Server thread/INFO]: IheatC[/113.161.92.176:60971] logged in with entity id 158249 at (-147.5, 65.0, 360.44719085952283)
[01:24:35] [Server thread/INFO]: Sending server config values to client
[01:24:35] [Server thread/INFO]: IheatC joined the game
[01:24:36] [Server thread/INFO]: Receiving client config
[01:27:13] [Server thread/ERROR]: Tried to load invalid item: 'No key id in MapLike[{OrcItem:{count:1,id:"minecraft:egg"},Slot:0b}]'
[01:27:13] [Server thread/WARN]: Exception loading entity:
net.minecraft.class_148: Loading entity NBT
at knot/net.minecraft.class_1297.method_5651(class_1297.java:2035) ~[server-intermediary.jar:?]
at knot/net.minecraft.class_1299.method_17839(class_1299.java:557) ~[server-intermediary.jar:?]
at knot/net.minecraft.class_156.method_17974(class_156.java:595) ~[server-intermediary.jar:?]
at knot/net.minecraft.class_1299.method_5892(class_1299.java:556) ~[server-intermediary.jar:?]
at knot/net.minecraft.class_1299.method_17848(class_1299.java:644) ~[server-intermediary.jar:?]
at knot/net.minecraft.class_1299.method_17842(class_1299.java:595) ~[server-intermediary.jar:?]
at knot/net.minecraft.class_1299$1.method_31490(class_1299.java:618) ~[server-intermediary.jar:?]
at java.base/java.util.Spliterators$IteratorSpliterator.tryAdvance(Spliterators.java:1950) ~[?:?]
at knot/net.minecraft.class_1299$1.tryAdvance(class_1299.java:617) ~[server-intermediary.jar:?]
at java.base/java.util.Spliterator.forEachRemaining(Spliterator.java:332) ~[?:?]
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[?:?]
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[?:?]
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) ~[?:?]
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?]
at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[?:?]
at knot/net.minecraft.class_5565.method_31731(class_5565.java:77) ~[server-intermediary.jar:?]
at java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:646) ~[?:?]
at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:482) ~[?:?]
at knot/net.minecraft.class_3846.method_16907(class_3846.java:91) ~[server-intermediary.jar:?]
at knot/net.minecraft.class_3846.method_16900(class_3846.java:146) ~[server-intermediary.jar:?]
at knot/net.minecraft.class_3846.run(class_3846.java:102) ~[server-intermediary.jar:?]
at knot/net.minecraft.class_3738.run(class_3738.java:18) ~[server-intermediary.jar:?]
at knot/net.minecraft.class_1255.method_18859(class_1255.java:162) ~[server-intermediary.jar:?]
at knot/net.minecraft.class_4093.method_18859(class_4093.java:23) ~[server-intermediary.jar:?]
at knot/net.minecraft.server.MinecraftServer.method_24306(MinecraftServer.java:864) ~[server-intermediary.jar:?]
at knot/net.minecraft.server.MinecraftServer.method_18859(MinecraftServer.java:173) ~[server-intermediary.jar:?]
at knot/net.minecraft.class_1255.method_16075(class_1255.java:136) ~[server-intermediary.jar:?]
at knot/net.minecraft.server.MinecraftServer.method_20415(MinecraftServer.java:846) ~[server-intermediary.jar:?]
at knot/net.minecraft.server.MinecraftServer.method_16075(MinecraftServer.java:840) ~[server-intermediary.jar:?]
at knot/net.minecraft.class_1255.method_5383(class_1255.java:121) ~[server-intermediary.jar:?]
at knot/net.minecraft.server.MinecraftServer.method_16208(MinecraftServer.java:814) ~[server-intermediary.jar:?]
at knot/net.minecraft.server.MinecraftServer.method_29741(MinecraftServer.java:702) ~[server-intermediary.jar:?]
at knot/net.minecraft.server.MinecraftServer.method_29739(MinecraftServer.java:281) ~[server-intermediary.jar:?]
at java.base/java.lang.Thread.run(Thread.java:1583) [?:?]
Caused by: java.util.NoSuchElementException: No value present
at java.base/java.util.Optional.get(Optional.java:143) ~[?:?]
at knot/net.adventurez.entity.DragonEntity.method_5749(DragonEntity.java:233) ~[adventurez-1.4.24.jar:?]
at knot/net.minecraft.class_1297.method_5651(class_1297.java:2026) ~[server-intermediary.jar:?]
... 33 more
[01:27:13] [Server thread/WARN]: Can't keep up! Is the server overloaded? Running 2231ms or 44 ticks behind
[01:43:34] [Server thread/INFO]: IheatC has made the advancement [Dormammu i've come to bargain.]
[01:43:57] [Server thread/INFO]: nam has made the advancement [Dormammu i've come to bargain.]
[01:49:50] [Server thread/INFO]: IheatC has made the advancement [Like a frog.]
[01:55:48] [Server thread/INFO]: nam has made the advancement [Let's fix the broken.]
[01:56:18] [Server thread/INFO]: [nam: Teleported nam to IheatC]
[01:56:23] [Server thread/INFO]: IheatC has made the advancement [Let's fix the broken.]
[02:11:57] [Server thread/INFO]: IheatC has made the advancement [The sea is full.]
[02:12:05] [Server thread/INFO]: IheatC has made the advancement [Never more.]
[02:15:03] [Server thread/INFO]: IheatC has made the advancement [Straight from the deep.]
[02:15:13] [Server thread/INFO]: nam has made the advancement [Straight from the deep.]
[02:23:14] [Server thread/WARN]: IheatC moved wrongly!
[02:23:15] [Server thread/INFO]: Named entity class_1642['Webslinging Blinding Burning Gravity Zombie'/187527, l='ServerLevel[world]', x=-1062.88, y=64.00, z=2962.76] died: Webslinging Blinding Burning Gravity Zombie was slain by IheatC
[02:23:26] [Server thread/INFO]: IheatC lost connection: Disconnected
[02:23:26] [Server thread/INFO]: IheatC left the game

Do you use any other mods except the required ones?

No response