...
This then means that Iguana won’t start. This video shows how to diagnose the issue:
...
This next video shows how you can alter your home directory to not have a space in it:
...
How do you fix it? A simple safe approach could be to:
Create a new user account
Try out Iguana in it.
If that fixes the problem
Copy the data from your home directory into the new account.
It’s a little more work but safe if you now a power user.
Alternatively you could reconfigure your existing account.