Recently, I was trying to make very simple program in C about calculating rectangle area and periamters for my students on codeblocks.

I am getting that done by header files and implementation files gather program functions.
The problem is when I was testing accessing header file by a path the whole project got corrupted it doesn’t build because some execution failures.

Picture when I try to build and run

Picture of current .c and .h files location

I tried to put the files back to the project directory and including the file as normal but the problem still there.