CURCY – Double currency conversion Extra Product Option, Error iOrder Page Admin

Hi,

When using the Extra Product Option ThemeComplete plugin, the order summary displays the amount incorrectly. For example: A product costs 40 euros, and when I change its currency to PLN in the cart, it multiplies by 4. After placing the order, this amount gets multiplied by 4 again. There is a double currency conversion. Additionally, when I click”Calculate” in the order, strange things happen and the values ​​change to some random and huge one. Same sitauation when I click “Update” in order Page Admin.

In php versions above 8.0 there is an error on the right side of the order – Currency Information (admin panel). It does not load the currency in which the order was placed and throws an error that the array is null – Warning: Undefined array key