Associate SubscriptionDraft to SubscriptionContracts

I am also facing this error? Could anybody help out from these error?

In my case, I am getting errors like these:

[
{ code: ‘INVALID’, field: null, message: ‘is invalid’ },
{
code: ‘INVALID_LINES’,
field: [ ‘draftId’ ],
message: ‘Contract draft must have at least one line.’
}
]

Please help @ThomazReis !!!