fix balancehelper
fix balancehelper

OmniLayer/omniwallet,achamely/omniwallet,Nevtep/omniwallet,Nevtep/omniwallet,OmniLayer/omniwallet,achamely/omniwallet,OmniLayer/omniwallet,achamely/omniwallet,Nevtep/omniwallet,OmniLayer/omniwallet,Nevtep/omniwallet,achamely/omniwallet