Livoltek - Problem App

Livoltek is a company which sells solar products, ie inverters and batteries. The app which is supplied by them and controls the inverter, doesn't work 70% of the time. this means the client cannot control or make any changes to his solar system. The problem is possibly the ****le that is faulty for all of the inverters. I hope they replace the ****le soon. In the mean time, think twice before installing such a system.