Smart Ultra 6 Wont Boot up but charging light shows up

[Guest Jargo1]

I have a problem with the smart Ultra 6 a few days ago I restarted my device but instead, it shut down and it won't boot anymore. I haven't rooted or anything I have tried like 6months ago but I've restarted my device a lot since then so I don't think it's that. I Don't have any recovery like TWRP installed just the default boot recovery but I can't access it because my phone won't boot up I have tried to hold the power button for 60+seconds and also tried the Volume up + Power button but that doesn't work. When I plug my charger in the blue light shows up and I had around 80% battery and was also charging it at the time. I'm Unsure what could have caused this but is it possible to fix this?