First learn how to use Terminal/console, probably when you call a program
from folder like
$ folder/folder/falshromfolder/ $ flashrom
in that way it won't run, so if you want to run an program from folder:
$ folder/folder/falshromfolder/ $ ./flashrom
basically it is a newbie error.
Before running any program, in Debian type
and then your password
Please forget TeamViewer, we will not recommend you non-free software, so try
to never use non-free software. You han learn SSH
And please give me full console output, for see what are oyu trying to do.