ADIS16203 problem with clock interference

Hello everybody,

I'm trying to read out the Data from an ADIS16203 Inclinometer via SPI using a BeagleBone Black as Master. But the received Data I saw consists only of Zeros. Because of this I tried to look at the Signal with an Oscilloscope. What I saw than was that a Signal exactly like the clock signal lies over MISO.  

Does anybody know what causes this and if there is a way to fix it?

Let me know if you any further Information like Code etc.

Best Regards and thank you in advance for any help!