Cannot delete a Corrupted lookup Column from the list

Issue : Just Today i came accross a issue in Which the User had a List with many columns and One of the column Which was a look up column was corrupted

used to give a error "Unknown Error"

We were not able to Delete or edit the column

After a lot of research we found a work around to delete the Column

Checked the Url and found the below

/_layouts/FldEditex.aspx?List=%7B37920121%2D19B2%2D4C77%2D92FF%2D8B3E07853114%7D&Field=Product%5Fx0020%5FDescription

Which is a wrong url it should be

/_layouts/FldEdit.aspx?List=%7B37920121%2D19B2%2D4C77%2D92FF%2D8B3E07853114%7D&Field=Product%5Fx0020%5FDescription

Just remove ex from FldEditex.aspx => FldEdit.aspx

And you will be able to get to the inside of the column where you can edit or Delete the column .

Cause - Unknown