Unmovable, un-interactable, unbreakable blocks

I have a moss farm I created that uses stone generators and I was kicked from our realm while loading the machine and upon logging in I now have 9 blocks that look like the attachment and are basically not there yet have a collision box. These blocks are unmovable, unbreakable, and don't turn to moss like they should. I just want them out of my farm but have no idea what to do. please help!

Thank you,

Matt