fix issue with member command

src/commands/members.ts

@@ -35,6 +35,8 @@ export default class Members extends Command {
 
       const role = this.client.util.resolveRole(args.join(' '), this.mainGuild);
       if (!role) return this.error(message.channel, 'The role you specified doesn\'t exist.');
+      const check = this.mainGuild.members.filter((m) => m.roles.includes(role.id));
+      if (!check || check?.length < 1) return this.error(message.channel, 'There are no members in this role.');
       const statusArray: string[] = [];
       const membersOnline: string[] = [];
       const membersIdle: string[] = [];