Form complete but not error handled

scripts/classes/BlockInfo.js

@@ -2,6 +2,8 @@ import { system, world } from '@minecraft/server';
 import { Raycaster } from '../classes/Raycaster';
 
 class BlockInfo {
+    static shownToLastTick = new Set();
+
     static onTick() {
         for (const player of world.getAllPlayers()) {
             if (!player)
@@ -12,16 +14,24 @@ class BlockInfo {
 
     static showStructureBlockInfo(player) {
         const block = Raycaster.getTargetedStructureBlock(player, { isFirst: true, collideWithWorldBlocks: true });
+        if (!block && this.shownToLastTick.has(player.id)) {
+            player.onScreenDisplay.setActionBar({ text: 'Structure:\n§7None' });
+            this.shownToLastTick.delete(player.id);
+        }
         if (!block)
             return;
         player.onScreenDisplay.setActionBar({ text: this.getFormattedBlockInfo(block.permutation) });
+        this.shownToLastTick.add(player.id);
     }
 
     static getFormattedBlockInfo(block) {
+        const header = 'Structure:\n'
+        if (!block)
+            return header + '§7Unknown';
         const states = block.getAllStates();
         if (Object.keys(states).length === 0)
-            return `Structure:\n§a${block.type.id}`;
-        return `Structure:\n§a${block.type.id}\n§7${this.getFormattedStates(states)}`;
+            return header + `§a${block.type.id}`;
+        return header + `§a${block.type.id}\n§7${this.getFormattedStates(states)}`;
     }
 
     static getFormattedStates(states) {