Can't paste files in any partition and alt f2 no more workin

When i right a file in any partion i can select copy. Yet i can’t select paste or do ctrl V. If i drag a file between two different partitions i can select “copy here”. This happens in both konqueror and dolphin. Also i have checked and i still have the ability to rename file by right clicking them. Everything was working fine before but now not anymore.

Also when press alt f2 at the desktop, the terminal windows refuses to come up, i can right click on the desktop and select run command.