Size file problem PLEASE HELP ME

this function thank you very much for your help.

if you need information about weapons in 3D I have stock :ru::fr::us::fist:t2::fist:t2::fist:t2::fist:t2::fist:t2:

after machining this gives that, just in size 1: 1 to allow to see and corrected the defects. here is my Instagram address or it finds more pictures of my work.