Explosives at fenth press not working

[Nep]

As the title says. After we load it with heat and press the button thing it gives an error message in an alert. I would copy the full message, but my browser won't let me. Here it is in screenshot form instead:

[MaGoHi]

https://magicduel.com/page/Announcement/view/4549

 

[Chewett]

Do they work now does anyone know? Could someone check please