Alles anzeigensettings is now correct, did you;
1, connect PIN19 to Data GPIO10
2, connect PIN23 to clock? GPIO11
3, ground your (-) from ledstrip and pi to PSU?
4, measure the voltage of PSU > may not exceed 5 volts
check al of this first >> https://pinout.xyz/pinout/spi
SPI are activate too.