Currency problem

Please help, we have problem with currency, in frontend and email we have 0 to pay. How to fix it?
in backend we create:
New currency PL
The tax is Off

test: splash-art.nazwa.pl/rejsy/index.php/reze...servationasset&id=12
Where we can mail login and password to administrator backend

We have also problem with gallery plugin.

I recently install component on local xamp server. After installing sample data, and configuring this data,
I have same problem with currency ... After finishing reservation i got this messages :



In admin panel, when i click on edit reservation, i got this messages of errors :



Any help ? Thanks

Here is my screnshots of list and configuration of currency