diff --git a/build.gradle b/build.gradle
index 2887247..0cb7bbe 100644
--- a/build.gradle
+++ b/build.gradle
@@ -22,7 +22,7 @@ idea {
 }
 
 group "net.trivernis"
-version "0.16-beta"
+version "1.0"
 
 sourceCompatibility = 1.8
 
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdCancel.kt b/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdCancel.kt
index 0c662c5..0bc262f 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdCancel.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/commands/CmdCancel.kt
@@ -30,14 +30,21 @@ class CmdCancel(private val chunkmaster: Chunkmaster): Subcommand {
      * Cancels the generation task if it exists.
      */
     override fun execute(sender: CommandSender, args: List<String>): Boolean {
-        return if (args.isNotEmpty() && args[0].toIntOrNull() != null) {
-            if (chunkmaster.generationManager.removeTask(args[0].toInt())) {
-                sender.sendMessage(chunkmaster.langManager.getLocalized("TASK_CANCELED", args[0]))
+        return if (args.isNotEmpty()) {
+            val index = if (args[0].toIntOrNull() != null) {
+                args[0].toInt()
+            } else {
+                chunkmaster.generationManager.tasks.find { it.generationTask.world.name == args[0] }?.id
+            }
+
+            if (index != null && chunkmaster.generationManager.removeTask(index)) {
+                sender.sendMessage(chunkmaster.langManager.getLocalized("TASK_CANCELED", index))
                 true
             } else {
                 sender.sendMessage(chunkmaster.langManager.getLocalized("TASK_NOT_FOUND", args[0]))
                 false
             }
+
         } else {
             sender.sendMessage(chunkmaster.langManager.getLocalized("TASK_ID_REQUIRED"));
             false
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTask.kt b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTask.kt
index 539a8da..28df798 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTask.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTask.kt
@@ -5,12 +5,13 @@ import net.trivernis.chunkmaster.lib.dynmap.*
 import net.trivernis.chunkmaster.lib.shapes.Shape
 import org.bukkit.Chunk
 import org.bukkit.World
+import java.lang.Exception
 
 /**
  * Interface for generation tasks.
  */
 abstract class GenerationTask(
-    plugin: Chunkmaster,
+    private val plugin: Chunkmaster,
     startChunk: ChunkCoordinates,
     val shape: Shape
 ) :
@@ -69,7 +70,11 @@ abstract class GenerationTask(
     protected fun unloadLoadedChunks() {
         for (chunk in loadedChunks) {
             if (chunk.isLoaded) {
-                chunk.unload(true)
+                try {
+                    chunk.unload(true)
+                } catch (e: Exception) {
+                    plugin.logger.severe(e.toString())
+                }
             }
             if (dynmapIntegration) {
                 dynmap?.triggerRenderOfVolume(chunk.getBlock(0, 0, 0).location, chunk.getBlock(15, 255, 15).location)
diff --git a/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTaskPaper.kt b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTaskPaper.kt
index 5e8d92f..e68f869 100644
--- a/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTaskPaper.kt
+++ b/src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationTaskPaper.kt
@@ -4,6 +4,7 @@ import net.trivernis.chunkmaster.Chunkmaster
 import net.trivernis.chunkmaster.lib.shapes.Shape
 import org.bukkit.Chunk
 import org.bukkit.World
+import java.lang.Exception
 import java.util.concurrent.CompletableFuture
 
 class GenerationTaskPaper(
@@ -92,7 +93,11 @@ class GenerationTaskPaper(
         }
         for (chunk in loadedChunks) {
             if (chunk.isLoaded) {
-                chunk.unload(true)
+                try {
+                    chunk.unload(true);
+                } catch (e: Exception){
+                    plugin.logger.severe(e.toString())
+                }
             }
         }
     }
diff --git a/src/main/resources/plugin.yml b/src/main/resources/plugin.yml
index 15dbfb0..d49c8d6 100644
--- a/src/main/resources/plugin.yml
+++ b/src/main/resources/plugin.yml
@@ -1,6 +1,6 @@
 main: net.trivernis.chunkmaster.Chunkmaster
 name: Chunkmaster
-version: '0.16-beta'
+version: '1.0'
 description: Chunk commands plugin.
 author: Trivernis
 website: trivernis.net