Solved Error with 1.1

I'm getting this crashdump when I player joins. It crashed the server.

Code:

PocketMine-MP Crash Dump Mon Jun 5 18:56:38 UTC 2017

Error: Argument 1 passed to pocketmine\utils\Binary::writeVarLong_64() must be of the type integer, null given, called in phar:///home/mcpe/PocketMine-MP.phar/src/pocketmine/utils/Binary.php on line 650
File: /src/pocketmine/utils/Binary
Line: 677
Type: notice

Code:
[668]         return self::writeUnsignedVarLong_32($v);
[669]     }
[670]
[671]     /**
[672]      * 64-bit VarLong encoder.
[673]      *
[674]      * @param int $v
[675]      * @return string
[676]      */
[677]     public static function writeVarLong_64(int $v) : string{
[678]         return self::writeUnsignedVarLong_64(($v << 1) ^ ($v >> 63));
[679]     }
[680]
[681]     /**
[682]      * Writes a 64-bit integer as a variable-length long
[683]      *
[684]      * @param int|string $v
[685]      * @return string up to 10 bytes
[686]      */
[687]     public static function writeUnsignedVarLong($v) : string{

Backtrace:
#0 /src/pocketmine/utils/Binary(650): pocketmine\utils\Binary::writeVarLong_64(NULL )
#1 /src/pocketmine/utils/BinaryStream(333): pocketmine\utils\Binary::writeVarLong(NULL )
#2 /src/pocketmine/network/mcpe/protocol/DataPacket(268): pocketmine\utils\BinaryStream->putVarLong(NULL )
#3 /src/pocketmine/network/mcpe/protocol/AddPlayerPacket(67): pocketmine\network\mcpe\protocol\DataPacket->putEntityUniqueId(NULL )
#4 /src/pocketmine/network/mcpe/RakLibInterface(193): pocketmine\network\mcpe\protocol\AddPlayerPacket->encode(boolean)
#5 /src/pocketmine/Player(1053): pocketmine\network\mcpe\RakLibInterface->putPacket(pocketmine\Player object, pocketmine\network\mcpe\protocol\AddPlayerPacket object, boolean , boolean )
#6 /Slapper/src/slapper/entities/SlapperHuman(77): pocketmine\Player->dataPacket(pocketmine\network\mcpe\protocol\AddPlayerPacket object)
#7 /src/pocketmine/Player(792): slapper\entities\SlapperHuman->spawnTo(pocketmine\Player object)
#8 /src/pocketmine/level/Level(2428): pocketmine\Player->sendChunk(integer 31, integer 9, pocketmine\network\mcpe\protocol\BatchPacket object)
#9 /src/pocketmine/level/format/io/ChunkRequestTask(88): pocketmine\level\Level->chunkRequestCallback(integer 31, integer 9, pocketmine\network\mcpe\protocol\BatchPacket object)
#10 /src/pocketmine/scheduler/AsyncPool(158): pocketmine\level\format\io\ChunkRequestTask->onCompletion(pocketmine\Server object)
#11 /src/pocketmine/scheduler/ServerScheduler(339): pocketmine\scheduler\AsyncPool->collectTasks(boolean)
#12 /src/pocketmine/Server(2414): pocketmine\scheduler\ServerScheduler->mainThreadHeartbeat(integer 1686)
#13 /src/pocketmine/Server(2182): pocketmine\Server->tick(boolean)
#14 /src/pocketmine/Server(2064): pocketmine\Server->tickProcessor(boolean)
#15 /src/pocketmine/Server(1646): pocketmine\Server->start(boolean)
#16 /src/pocketmine/PocketMine(501): pocketmine\Server->__construct(BaseClassLoader object, pocketmine\utils\MainLogger object, string phar:///home/mcpe/PocketMine-MP.phar/, string /home/mcpe/, string /home/mcpe/plugins/)
#17 (1): require_once(string phar:///home/mcpe/PocketMine-MP.phar/src/pocketmine/PocketMine.php)

PocketMine-MP version: 1.6.2dev #0 [Protocol 113; API 3.0.0-ALPHA5]
Git commit: 0000000000000000000000000000000000000000
uname -a: Linux infinity-pe.ga 3.16.0-4-amd64 #1 SMP Debian 3.16.39-1 (2016-12-30) x86_64
PHP Version: 7.0.3
Zend version: 3.0.0
OS : Linux, linux

Loaded plugins:
ImagicalDevTools 2.1.1 by PocketMine Team and modyfied by DarkWav for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
NetherChests 1.1.1 by aliuly for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
ManyWorlds 2.0.3 by aliuly for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
SkyWarsDoDo 1.0.0 Reloaded_ENGLISH by KaitoDoDo for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
BasicHUD 1.0.6 by aliuly for API(s) 3.0.0-ALPHA5
ExtraProtector 1.0.0 by WinterBuild for API(s) 3.0.0-ALPHA5
CrateKeys 0.0.1 by  for API(s) 3.0.0-ALPHA5
PurePerms 1.3.7 by 64FF00 & ProjectInfinity for API(s) 1.13.0, 2.0.0, 3.0.0-ALPHA5
Parkour 3 by Driesboy for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
ServerAuth 2.13 by EvolSoft for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
ItemBlocker 1.0.0 by WinterBuild for API(s) 3.0.0-ALPHA5
VoteReward 3.0.2 by LDX for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
TimerBan 2.1 by onebone for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
iProtector 3.1b by LDX for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
FactionsPro 1.3.7 by Tethered_ for API(s) 2.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA5
ChatDefender 1.1.1 by Falkirks for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
TapToDo 2.2.1 by Falk for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
SignPortal 1.1.2 by 99leonchang for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
SexyMOTD 1.0.0 by hoyinm14mc for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
Elytra 2 by Ad5001 for API(s) 3.0.0-ALPHA5
BuyCraft 1.2.2 by Falkirks for API(s) 3.0.0, 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5
KeepInventory 1.2.0 by boybook for API(s) 3.0.0-ALPHA5
EssentialsPE 2.0.0 by LegendsOfMCPE Team for API(s) 3.0.0-ALPHA5
EconomyJob 2.0.4 by onebone for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
Extra 2 by WinterBuild7074 for API(s) 3.0.0-ALPHA5
Slapper 1.3.4 by jojoe77777 for API(s) 3.0.0-ALPHA5
EconomyAPI 2.0.9 by onebone for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
AdvancedKits 5.1 by luca28pet for API(s) 2.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA5
MagicWE 0.2.6 by thebigsmileXD for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
ChatToolsPro 1.1 by paetti for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
Broadcaster 1.16 by EvolSoft for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
AlwaysSpawn 2.1.0 by Comedyman937 for API(s) 3.0.0-ALPHA5
ParticlesPlus 0.0.2 by ImagicalGamer for API(s) 1.0.0, 2.0.0, 3.0.0-ALPHA5
InfinityInfos 1.0.1 by DuengonZocker for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
EconomyShop 2.0.7 by onebone for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
EconomySell 2.0.7 by onebone for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
MyPlot 1.1.3 by Wiez, Exxarion, jasonwynn10 for API(s) 2.0.0, 1.0.0, 3.0.0-ALPHA1, 3.0.0-ALPHA2, 3.0.0-ALPHA3, 3.0.0-ALPHA4, 3.0.0-ALPHA5, 3.0.0
PureChat 1.4.0-BETA-05 by 64FF00 for API(s) 1.13.0, 2.0.0, 3.0.0-ALPHA5

I hope you can help me as soon as possible!

 

That is a slapper issue

 

But that error clearly states that you are using slapper

 

For similar future issues, you should try to take the issue to the developer of the plugin first. Assuming they are active, they know the plugin better than we do, and will likely have a much easier time fixing it. Most public plugins have a GitHub repository with a very useful issue tracker.

 

Will my slappers get all deleted if I update?

 

Slapper was loaded. Unless you can reproduce it without Slapper being loaded, there's no point in assuming it's another issue.

Aren't they all saved in a file? Keep a backup of that just in case, but you should be fine.

 

See #54 and #57.

 

But the crashdump says that you do have it and it is loaded. Are you sure that you've removed it correctly?

 

That picture shows many plugins that weren't in console, however. Also, Slapper is enabled, according to it.

 

What should the name of the file be where they're saved? Is it a .yml?

 

Nvm, it's actually SlapperCache that does that.

 

I don't have that installed... but I'm still wondering where it's saved. Maybe in .PHP file?

 

I don't which plugin does this, but I always get this error message in console:

I know this not the right place, but I cannot open a GitHub issue.