*Check if we are bootstrapped and queue broadcast in removeItem like with addItem

src/index.ts

@@ -136,11 +136,19 @@ export default class DHTCache extends EventEmitter {
 
     this._removeEntity(item);
 
+    const broadcast = () => {
       this._broadcastMessage({
         type: Type.REMOVE_ITEM,
-      data: b4a.from(item, "hex"),
+        data: b4a.from(item as string, "hex"),
         signature: this._signItem(item),
       });
+    };
+
+    if (!this.bootstrapped) {
+      this.once("bootstrapped", broadcast);
+    } else {
+      broadcast();
+    }
 
     return true;
   }