Error replying to tweet: TypeError: Cannot read properties of undefined (reading 'userMentionTimeline')

[SeloSlav]

I'm just trying to fetch the most recent timeline mentions for a particular user.

// Fetch the most recent mentions of the @BabaSeloCooks account
try {
  const mentions = await client.v2.userMentionTimeline('1647779341437206529', {
    end_time: '2020-01-01'
  });
  console.log(mentions);
} catch (error) {
  console.error('Error fetching mentions:', error);
  throw error; // Rethrow the error to handle it at the outer catch block
}

I get the following error:

Error replying to tweet: TypeError: Cannot read properties of undefined (reading 'userMentionTimeline')

I have Essentials. Do I need to upgrade to Elevated Basics to access this?