Grub Loading error and miinimal bash line edditing error

Dear all, I know there is a lot of information about this error, I have been searching and trying but nothing seems to help.

I created an iso file on a flash and installed kali linux.Upon succesful installation, When I booted out and tried to login, I was presented with the following error.Grub loading...error no such device..entering rescue mode. .By then I could still boot in through my pendrive.

I then followed some tutorials on how to fix it.To my suprise, My pendrive cannot boot in anymore.It presents me with the following error, minimal bash line editing..grub>..But when I boot in with F12, I can boot in with the kali live mode.

Thanks in advanced.I tried to give as much information as I could.Let me know if you need more information.

Kind regards,