Error Codes 00575 & 17978: Troubleshooting Help

hi,
I found a similar error during my search before, but unfortunately, the answers I found didn't really help me.
I have an Audi A6 V6 TDI, I think it has a 2.5-liter engine.
The problem is that the engine has no power; it's only running in a limited mode, so it cuts out at 2500 RPM.
and every time I start it, the device beeps three times, and a large symbol is constantly flashing on the display.
Unfortunately, I couldn't connect my tester to the car's diagnostic system, so I briefly drove to VW earlier.
According to their tester, it has 2 errors.
00575 008
Intake manifold pressure exceeding limit, intermittent.

17978 P1570 035
Engine control unit locked.

Does anyone know what might be causing these errors?
I am grateful for any help.

Best regards, Toshi.

You can ignore the 17978 for now (WFS).
Just type "575" into the search bar. You'll quickly find out what the problem is related to, which is the boost pressure control.

Then, please check the "Technical Articles" category and read the articles that relate to the error you're experiencing, and review the possible causes listed there.

If you have any further questions, please feel free to ask (but please do so after reading the relevant articles).

Regards,
Sure, here's the translation:

"Guste" is a German word that means "gust" or "gust of wind." It can also be used to describe a sudden burst of something, such as laughter or anger.