Default Currency issue

Hello, i download and installed Akaunting Version 1.3.17 on our server and has a issue on the default currency. i preferred to use Peso (PHP) and i set to the default currency and removed the other available. but the Expenses > payment still USD, but the other like bills are successfully changed to Peso.
Any solution for this?

thank you in advance

opps.. it's not a bug, i just need to change the currency in the account.

Thanks