When you say load, Kodi or the box won't boot up.
If its the 1st go to setting in the main boot menu and then other, more setting and check your storage here. If its nearly full delete something and clear cache. You can also delete apps you don't use...
If it won't boot up, try the restore button on the side..hold it in to you see the recovery menu, then again clear cache and reboot.
Good luck