Malformed calls from JS : field sizes are different [[8,39],[4,0]

The APIs has been updated in version 6. Changing from callback (version 5 uses callback) to promise worked for me. I mean change -

Contacts.getAll((err, contacts) => { });

to -

Contacts.getAll()
    .then((contacts) => {
      // work with contacts
    })
    .catch((e) => { //handle error })

With the updated API version, you need to change the callback syntax to promise .then and .catch such as

Contacts.getAll()
    .then(contacts => { //your code here })
    .catch(e => { //handle error })

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