diff --git a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/server/PlayCommand.java b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/server/PlayCommand.java
index db73b27..b28fda6 100644
--- a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/server/PlayCommand.java
+++ b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/server/PlayCommand.java
@@ -9,6 +9,7 @@ import de.kentoj.scrow.bukkit.ScrowAPI;
 import de.kentoj.scrowlib.servermanager.ServerInstance;
 import lombok.Getter;
 import org.bukkit.command.CommandSender;
+import reactor.core.publisher.Mono;
 
 public class PlayCommand implements CommandExecutor<CommandSender, BukkitCommandContext> {
 
@@ -26,16 +27,17 @@ public class PlayCommand implements CommandExecutor<CommandSender, BukkitCommand
     @Override
     public void execute(BukkitCommandContext ctx) {
         var gamemode = ctx.getArg(gamemodeArg);
-        ScrowAPI.getServerManager().getRunningServers().filter(
-                        inst -> inst.getTemplateName().equals(gamemode) && inst.getState().equals("UP")
-                )
-                .single()
+        ScrowAPI.getServerManager().getRunningServers()
+                .filter(inst -> inst.getTemplateName().equals(gamemode))
+                .filter(inst -> inst.getState().equals("UP"))
+                .next()
+                .switchIfEmpty(Mono.error(new IllegalStateException("No instance available")))
                 .map(ServerInstance::getHandle)
                 .flatMap(handle ->
                         ScrowAPI.getServerManager().sendPlayer(ctx.getPlayerSender().getUniqueId(), handle)
                 )
                 .subscribe(null, ex -> {
-                    ctx.getPlayerSender().sendMessage("failed sending you to " + gamemode + ": " + ex.getMessage());
+                    ctx.getPlayerSender().sendMessage("failed sending you to an instance of " + gamemode + ": " + ex.getMessage());
                 });
     }
 }