help interstorage disapeared

[GodxSon]

hi, i flashed mightyrom then i went into disk drive mode to restore all my apps when i clicked on the diskdrive it said "this is not formatted, format now" i said why not and clicked yes..then after i put all my cabs i unpluged and whent to file explorer on my phone to install them but there was no interstorage!! i tried flashing mughtyrom again and i even hardrested..how can i fix this help please

thanks