When the mini body fat scale bought in Mint Health app Store can't connect to the Bluetooth connection of the mobile phone, the scanning failed. What does error code 6 mean?

When the mini body fat scale bought in Mint Health app Store can't connect to the Bluetooth connection of the mobile phone, the scanning failed. What does error code 6 mean? When the mini body fat scale bought in Mint Health app Store can't connect to the Bluetooth connection of the mobile phone, the scanning failed. What does error code 6 mean?