What does the Orange around my screen mean?

I recently bought a Blade ZTEX. Everyday now I've regretted it. It freezes can't do nothing until phone is ready. Auto spell spells what it wants no matter how I want to spell . I want to take pictures n it comes up not enough space delete some pictures. For one I have 32-34 gas internal and 16 gas external. How can I not have room? I can text or b on phone my phone will buzz letters n numbers are gigantic. I have turn phone off then back on. (not all the way off)

Would someone please help me. Before I just throw it out Thank you