Crash when breaking a work station: Ticking entity

Description: Ticking entity

java.lang.NullPointerException: Ticking entity
	at bht.e_(SourceFile:139)
	at cnn.a(SourceFile:473)
	at cnn.a(SourceFile:461)
	at cnn.a(SourceFile:380)
	at cnn.a(SourceFile:345)
	at cnn.a(SourceFile:433)
	at cnn.b(SourceFile:225)
	at cnn.a(SourceFile:160)
	at cnn.a(SourceFile:121)
	at cnk.a(SourceFile:83)
	at cnk.a(SourceFile:37)
	at api.a(SourceFile:144)
	at api.b(SourceFile:112)
	at aph.b(SourceFile:65)
	at ajq.a(SourceFile:95)
	at ajq$$Lambda$2911/498408551.test(Unknown Source)
	at aqh.b(SourceFile:102)
	at aqh$$Lambda$2913/287677416.test(Unknown Source)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:174)
	at java.util.stream.SortedOps$RefSortingSink.end(SortedOps.java:395)
	at java.util.stream.Sink$ChainedReference.end(Sink.java:258)
	at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:530)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:516)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:502)
	at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:152)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:464)
	at aqh.b(SourceFile:103)
	at ajq.a(SourceFile:103)
	at ajs.b(SourceFile:49)
	at ajg.b(SourceFile:263)
	at ajg$$Lambda$2895/1931229454.accept(Unknown Source)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.Iterator.forEachRemaining(Iterator.java:116)
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580)
	at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:270)
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.HashMap$EntrySpliterator.forEachRemaining(HashMap.java:1683)
	at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580)
	at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:270)
	at java.util.TreeMap$ValueSpliterator.forEachRemaining(TreeMap.java:2893)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:512)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:502)
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
	at ajg.d(SourceFile:263)
	at ajg.a(SourceFile:222)
	at avl.L(SourceFile:244)
	at ais.db(SourceFile:630)
	at air.k(SourceFile:2257)
	at ais.k(SourceFile:486)
	at aig.k(SourceFile:140)
	at air.h(SourceFile:2102)
	at ais.h(SourceFile:293)
	at avl.h(SourceFile:282)
	at vg.a(SourceFile:580)
	at vg$$Lambda$2840/971791235.accept(Unknown Source)
	at bhi.a(SourceFile:676)
	at vg.a(SourceFile:383)
	at net.minecraft.server.MinecraftServer.b(SourceFile:827)
	at net.minecraft.server.MinecraftServer.a(SourceFile:764)
	at dxk.a(SourceFile:128)
	at net.minecraft.server.MinecraftServer.run(SourceFile:632)
	at java.lang.Thread.run(Thread.java:745)