Malicious slippage

Be careful of this app, the data is false, and it crashes maliciously. Or it doesn't allow you to make operations, place orders or close positions, thus resulting in loss. When I told this situation to the customer service, he only told me to use mt4 or mt5. I have tested other software 2 to 3 times simultaneously, and the loss is more than 300,000, please be careful.