Bot must be admin on the MUC component.

server/lib/configuration/bot.ts

@@ -217,6 +217,13 @@ class BotConfiguration {
     }
   }
 
+  /**
+   * Returns the moderation bot JID
+   */
+  public moderationBotJID (): string {
+    return 'moderator@' + this.botsDomain
+  }
+
   /**
    * frees the singleton
    */

server/lib/prosody/config/content.ts

@@ -439,6 +439,9 @@ class ProsodyConfigContent {
     this.bot.set('modules_enabled', ['ping'])
     this.bot.set('authentication', 'peertubelivechat_bot')
 
+    // Adding the moderation bot as admin to the muc component.
+    this.muc.add('admins', BotConfiguration.singleton().moderationBotJID())
+
     const configurationPaths = BotConfiguration.singleton().configurationPaths()
     if (configurationPaths.moderation?.globalDir) {
       this.bot.set('livechat_bot_conf_folder', configurationPaths.moderation.globalDir)