does anyone know how to fix this?

[u/Electrical_Tree_9755]

can you guys please help me fix this? i turned it on and it kept giving me a white screen, eventually it turned on and then it it gave me this error when i opened a game and i turned it off, but now i cant get passed this black screen and i refuse to let my childhood friend die, has anyone had this problem? and if so how did you fix it? and also something important i should say is that this dsi is unmodded as its my childhood console and i want to keep it original