Printer won't boot properly after Christmas

Hi, Mi V-core300-3.1 is not playing nicely anymore. Last print was made 2 weeks ago. I did not change anything on the hardware side or software side for as far as I can remember (...). Now, when I physically switch on my printer and connect via moonraker, sometimes it boots properly but most of the time I get the orange screen with varying error messages, sometimes I get the blue Printer is not ready. If I wait half a minute and use the menu to restart klipper, I most of the times boot op normally. I have no idea where to look. Can anybody help me a bit in where to look for errors? My initial idea was low power/voltage but I checked the power supply and connections and they seem ok.
I am running a BTT-Manta M8P with a CM4

moonraker_3.log

klippy_3.log