Faulty camshaft position sensor codes?

[props]

Update: I checked my oil and it was a little low, I topped off the oil and my SES light turned off. A video is attached of my car idling, then revving up to 4k RPM (car is fully warmed up, oil temp is ~210).. please let me know what you guys think, and whether things are totally fine or if I should trailer it to the shop asap.

https://www.youtube.com/watch?v=T2cxuUJ7jZw

[Arith2]

Did you have to retime the car when doing your vanos work?

[props]

After doing some VANOS work to my car, I drove around for ~50 miles are so with no issues, until my SES light came on. I scanned the car with my code reader and got the following codes:

P1531 - B Camshaft Position Actuator Control Open Circuit (Bank 1)
P0015 Exhaust Camshaft Position Timing - Over-Retarded (Bank 1)

From what I can tell I have a faulty camshaft position sensor? Figured I'd get your guys .02 before I replace the part.

Cheers.