EB3A overload when not overload

Good morning,
I just bought a EB3a ; I charged 100%, but any kind of appliance I try to connect (a hairdryer , a small oven …) I get an immediate “OVERLOAD” result ; can you pls help me to solve the problem ? I am in Italy . The number on the box was EB3A2428002037174

@Enrica Recorded, firmware will be pushed within 24 hours. Please update then and check if the problem is solved.

Thanks a lot, it’s working fine now!