Using a shifter is best practice and the correct way of doing things.
I think you may have shorted something out at one stage and that's done the shifter in but saved your Pi 
It's hard to diagnose hardware issues if you don't have two of everything
Glad you got it working - looking at your pictures it's also quite likely that you just had a bad connection along the way. The jumpers through the level shifter probably don't make the best connections.
Thanks for your answers, i have one more question regarding this project.
How can i light up a single LED in the strip? For example i want LED no. 60 to light up white. Enough to just create a inject node stating 60,60,255,255,255? The LED's before no. 60 are not supposed to light up. Also, at the same time i want to light up LED's depending on the CAN value.
CAN value should state the State of Charge of a battery in an electric car. The single LED should state the target SoC while charging.
Thanks again
I'm away until wed so can't test but you should be able to do it. The node help should give you enough info
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