Fix #1075

worldedit-core/src/main/java/com/sk89q/worldedit/command/HistorySubCommands.java

@@ -396,7 +396,7 @@ public class HistorySubCommands {
         PaginationBox pages = cached == null ? null : cached.get();
         if (page == null || pages == null) {
             RollbackOptimizedHistory edit = database.getEdit(other, index).get();
-            SimpleChangeSetSummary summary = edit.summarize(null, false);
+            SimpleChangeSetSummary summary = edit.summarize(RegionWrapper.GLOBAL(), false);
             if (summary != null) {
                 List<Countable<BlockState>> distr = summary.getBlockDistributionWithData();
                 SelectionCommands.BlockDistributionResult distrPages = new SelectionCommands.BlockDistributionResult((List) distr, true, pageCommand);
@@ -405,7 +405,11 @@ public class HistorySubCommands {
             }
             page = 1;
         }
-        player.print(pages.create(page));
+        if (pages == null) {
+            player.print(Caption.of("fawe.worldedit.history.distr.summary_null"));
+        } else {
+            player.print(pages.create(page));
+        }
     }
 
     @Command(

worldedit-core/src/main/java/com/sk89q/worldedit/util/formatting/component/PaginationBox.java

@@ -182,6 +182,9 @@ public abstract class PaginationBox extends MessageBox {
         @Override
         public Component getComponent(int number) {
             for (PaginationBox box : values) {
+                if (box == null) {
+                    continue;
+                }
                 int size = box.getComponentsSize();
                 if (size > number) {
                     return box.getComponent(number);
@@ -195,6 +198,9 @@ public abstract class PaginationBox extends MessageBox {
         public int getComponentsSize() {
             int size = 0;
             for (PaginationBox box : values) {
+                if (box == null) {
+                    continue;
+                }
                 size += box.getComponentsSize();
             }
             return size;

worldedit-core/src/main/resources/lang/strings.json

@@ -4,6 +4,7 @@
 	"fawe.worldedit.history.find.element": "&2{0} {1} &7ago &3{2}m &6{3} &c/{4}",
 	"fawe.worldedit.history.find.element.more": " - Changes: {0}\n - Bounds: {1} -> {2}\n - Extra: {3}\n - Size on Disk: {4}",
 	"fawe.worldedit.history.find.hover": "{0} blocks changed, click for more info",
+    "fawe.worldedit.history.distr.summary_null": "Could not find edit summary for inputs.",
 
 	"fawe.info.lighting.propagate.selection": "Lighting has been propagated in {0} chunks. (Note: To remove light use //removelight)",
 	"fawe.info.updated.lighting.selection": "Lighting has been updated in {0} chunks. (It may take a second for the packets to send)",