Failed to fetch error in @discordjs/rest

try {
      // Get the guild member data to ensure the user is part of the guild
      const memberData = await rest.get(Routes.guildMember(guildId, userId));
      console.log(memberData);

      if (memberData) {
        // Add the role to the user
        await rest.put(Routes.guildMemberRole(guildId, userId, roleId));

        console.log(`Successfully added role to user with ID: ${userId}`);
      } else {
        console.error(`User with ID ${userId} is not a member of the guild.`);
      }
    } catch (error) {
      console.error(error);
    }

try {
      // Get the guild member data to ensure the user is part of the guild
      const memberData = await rest.get(Routes.guildMember(guildId, userId));
      console.log(memberData);

      if (memberData) {
        // Add the role to the user
        await rest.put(Routes.guildMemberRole(guildId, userId, roleId));

        console.log(`Successfully added role to user with ID: ${userId}`);
      } else {
        console.error(`User with ID ${userId} is not a member of the guild.`);
      }
    } catch (error) {
      console.error(error);
    }