a crashing dump

at 9：57分，an JS(Java Sprite)make a crash and stop the server.
i feel sorry to every player.
bad plugins:放任职业.phar
another information:Genisys Crash Dump Thu Apr 7 21:40:09 CST 2016

Error: Call to undefined method pocketmine\entity\Zombie::getInventory()
File: /放任职业.phar/src/ExileRPG/ExileRPG
Line: 203
Type: E_ERROR

THIS CRASH WAS CAUSED BY A PLUGIN
此次出错由插件引起
BAD PLUGIN : ExileRPG v1.1.5

Code:
[194] }
[195]
[196] public function onHurt(EntityDamageEvent $event)
[197] {
[198] if ($event instanceof EntityDamageByEntityEvent) {
[199] $damager = $event->getDamager();
[200] $pn = $event->getDamager()->getName();
[201] $pyml = new Config($this->getDataFolder() . "players/" . strtolower($pn) . ".yml", Config::YAML, array());
[202] $entity = $event->getEntity();
[203] $item = $damager->getInventory()->getItemInHand()->getID();
[204] if ($pyml->exists("job")) {
[205] $job = $pyml->get("job");
[206] if ($entity instanceof Player && $damager instanceof Player) {
[207] if (!$event->isCancelled()) {
[208] foreach ($this->getServer()->getOnlinePlayers() as $p) {
[209] switch ($item) {
[210] case "276":
[211] switch ($job) {
[212] case "0"://战士
[213] $o = mt_rand(0,5);

Backtrace:
#0 (): pocketmine\Server->crashDump(boolean)

Genisys version: 1.1dev #0 [Protocol 45; API 1.13.1]
uname -a: Linux localhost 3.4.0-6731261 #1 ***P PREEMPT Tue Mar 15 14:43:14 KST 2016 armv7l
PHP version: 5.6.10
Zend version: 2.6.0
OS : Linux, android

Loaded plugins:
加载的插件:
SWorld 1.1.0 by 18WYJ2 & boybook for API(s) 1.0.0
SLand 1.1.7 by MUedsa(SmallLandGenerator),Homenear(Main) for API(s) 1.12.0
WAnnouncement 1.0.0 by for API(s) 1.0.0
WalkingParticles 0.1 by hoyinm for API(s) 1.12.0
GodIntegral 1.0.1 by xiaokai for API(s) 1.1.0
AshMan 1.0.1 by FENGberd,Alcatraz_Du for API(s) 1.0.0
PrizeWin 1.0.3 by LilCrispy2o9/Angelo Vidrio for API(s) 1.9.0
EconomyAPI 2.0.9 by onebone for API(s) 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, 1.4.0, 1.4.1
SimpleMarry 1.3.0 by Him188 for API(s) 1.0.0
DisableFlow 1.0.0 by MUedsa for API(s) 1.8.0
EconomyLand 2.0.7 by onebone for API(s) 1.12.0
Asign 1.4 by Kirt for API(s) 1.10.0
FactionsPro 1.0.1 by Tethered_ for API(s) 1.4.0
SignPrize 1.0.0 by Sartling for API(s) 1.0.0
Lift 1.3 by Developer_Ken for API(s) 1.0.0
ALLVIP 1.0.0 by happylife for API(s) 1.9.0
ServerState 1.6.0 by Ylh for API(s) 1.0.0
PvPMoney 1.0.0 by Smile for API(s) 1.10.0
Caves 1.1.0 by boybook for API(s) 1.12.0
essentialsTP 1.0.5 by for API(s) 1.0.0
Protection 1.8.6 by zzx for API(s) 1.9.0
killsteve 1.0.0 by Dust for API(s) 1.0.0
SmartSign_by腐竹CrainL 1.0.0 by CrainL for API(s) 1.0.0
ChestLocker 1.2 by EvolSoft for API(s) 1.8.0
iProtector 3.1a by LDX for API(s) 1.9.0
tntban 1.0.0 by didou for API(s) 1.1.0
EasyMenu 1.0.0 by didou QQ1649980398 for API(s) 1.12.0
MineReset 2.0.3 by Falk for API(s) 1.0.0
ZipPluginLoader_汉化BY_hero_teng_dad 2 by aliuly for API(s) 1.0.0
WorldProtect 2.0.2 by aliuly for API(s) 1.10.0
HealthMode 2.0.0 by linger for API(s) 1.10.1
ExileRPG 1.1.5 by super dell for API(s) 1.10.0
SignShop 2.0.0build3 by xionbig, xionbig for API(s) 1.12.0
BigBrother 1.5.0-beta by shoghicp for API(s) 1.10.0
PmChair 1.2 by maru for API(s) 1.12.0, 1.13.0, 2.0.0
Weather 2.1.3 by boybook for API(s) 1.13.0