old_contents: from __future__ import unicode_literals
  
  from frappe import _
  
  
  def get_data():
  	return {
  		'fieldname': 'bank',
  		'non_standard_fieldnames': {
  			'Paymnet Order': 'company_bank'
  		},
  		'transactions': [
  			{
  				'label': _('Bank Deatils'),
  				'items': ['Bank Account', 'Bank Guarantee']
  			}
  		]
  	}
  
new_contents: from __future__ import unicode_literals
  
  from frappe import _
  
  
  def get_data():
  	return {
  		'fieldname': 'bank',
  		'transactions': [
  			{
  				'label': _('Bank Deatils'),
  				'items': ['Bank Account', 'Bank Guarantee']
  			}
  		]
  	}
  
subject: Remove non standard fieldname