You would need to open the console (CMD/CTRL + ALT + i) and type:
CustomContracts.find().fetch() CustomContracts.remove('id')
CustomContracts.remove(CustomContracts.find().fetch()[0]._id)
You would need to open the console (CMD/CTRL + ALT + i) and type:
CustomContracts.find().fetch() CustomContracts.remove('id')
CustomContracts.remove(CustomContracts.find().fetch()[0]._id)