Exception generating new chunk

Description: Exception generating new chunk

java.util.concurrent.ExecutionException: java.lang.RuntimeException: We are asking a region for a chunk out of bound | 51 -65
	at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2237)
	at sk.c(SourceFile:126)
	at ss.a(SourceFile:84)
	at st.c(SourceFile:143)
	at sl.i_(SourceFile:223)
	at net.minecraft.server.MinecraftServer.w(SourceFile:693)
	at net.minecraft.server.MinecraftServer.v(SourceFile:626)
	at dii.v(SourceFile:156)
	at net.minecraft.server.MinecraftServer.run(SourceFile:531)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: We are asking a region for a chunk out of bound | 51 -65
	at sq.c(SourceFile:113)
	at bbf.y(SourceFile:45)
	at sq.a(SourceFile:267)
	at cbm.a(SourceFile:54)
	at cbp.a(SourceFile:37)
	at tc.a(SourceFile:21)
	at sy.a(SourceFile:34)
	at bqc.a(SourceFile:87)
	at te.a(SourceFile:59)
	at te.a(SourceFile:23)
	at agg$a.a(SourceFile:131)
	at agg$a$$Lambda$1422/2108809648.apply(Unknown Source)
	at java.util.concurrent.CompletableFuture$AsyncApply.exec(CompletableFuture.java:501)
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:902)
	at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1689)
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1644)
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)