Need help please

I had to reinstall color note and there is an automatic backed up data that was stored but it requires a password and I hadn't set one up in the past. How do I retrieve that information?

I cannt get my stuff from color note

I need help I didnt put a password on colornote in my adroid phone
I want to get a hold of the program maker so they can tell me
how to get my stuff from the back up part... does anyone know how
to get a hold of them