When I loaded a file and ran it, it gave a message asking me to submit a bug

I wrote the program evaluator1.hs from "Scheme Interpreter in 48 hours" tutorial. I loaded it into GHCi and ran Number 1. It gave a message:

:panic! (the 'impossible' happened)
(GHC version 6.10.1 for i386-unknow-mingw32):
   loadObj: failed

please report this as a GHC bug:  http:...

Edited Mar 09, 2019 by Ian Lynagh -

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information