Total noob struggling

Noob here. I have 1strand of WS2811 12v 100ct lights. I’m running off of ESPixelstick. I’m connected to my WiFi and I can type in the IP address I can do the basic color changes and the different blink and lightning changes. But when I change to solid white the lights just blink white and the app looses connection and freezes up. Only way the fix is unplug and plug back in.

When it’s back up and I try Xlights I can make a model and play in the sequence but I can’t send a sequence to the lights.

What power supply do you have for the lights and what do you have for the Pixelstick?
What version of WLED are you running?