bug in my world where there is invisible bedrock in my survival world

I can't break the block I can't do anything to get rid of it the only thing i can do is just stand on it i cant see it i cant even break it i can only break whats underneath it even if im standing on the bedrock i cant even move it with a piston please fix this as soon as possible by the way thats not the only invisible block my friend placed more invisible in my base