Fixed Price not working

Hi Villa Theme,

After enabling the Fixed price and updating the price on product level, the page did not load and doesnt show any PHP errors(see screenshot villa_theme_1.png), when I tried disabling the Fixed price it works fine (see screenshot villa_theme_2.png). Im not sure what happen but can you help me to fix this issue?

Also I attached the settings that I set on WooCommerce Multi Currency Settings (see screenshot villa_theme_3.png)