BabySharkS

So basically its related to your atk and health too. The stage set that you need at least how much atk and health to pass it. If your atk and health is too low and still pass that stage, then it will define you using 3rd party and wont let you pass. As I know is you need at least 2500-2700atk and 8500health to pass stage 40 now. So just gear up.

Did you turn off godmode and anticheat bypass?

Did you pass 34?

Go back to old stage and grind level.

For people got 3rd party warning, there is nothing wrong with the deb file. It's work perfectly. I find out the reason that the stage will stop at your level. For example, your level is 20 so you will get the 3rd party warning at stage 21. You can't pass it until your level is 21 or higher.