Cannot read properties of undefined (reading 'get') and ensure

Question

So I have this problem when working on old project here's the code for the get and ensure one, I'm using djs 13 currently

  client.Jobremind = new CronJob("*/5 * * * * *", async function(){
    let data = client.afkDB.get("REMIND")
    if(!data) {
        client.afkDB.ensure("REMIND", {
            REMIND: []
        });
        data = [];
    }
    var reminds_now = data.REMIND.filter(v=>{
        return v.time - (Date.now() - v.timestamp) <= 0
    })

picture below the code is the error

Appreciate those who can help and thanks for your time for reading this.