Boot stuck in black screen

I can successfully see the boot menu (so i think everything is fine up to bios setting which is in uefi mode and secure boot disabled) but after the boot process get stuck on black blinking cursor.
Boot Drive: sandisk pendrive
Live medium created form: etcher debian

What am i supposed to do next

Try Alt-F2 to see if you get the bash prompt.

It was the problem with gui and is now solved when i installed server iso and installed kde from there.