I keep getting this error appear: Caught exception: Invalid OAuth access token signature.
my app settings:
display name: FOH
email: my email address
app domains: thefutureofhardcore.com (tried different variations with www etc.)
Also when i go to save changes this appears at the top in red: Error
You have specified an App Domain but have not specified a valid integration URL.
thefutureofhardcore.com must be derived from one of: Site URL, Mobile Site URL, Canvas URL, Secure Canvas URL, Page Tab URL or Secure Page Tab URL.
Can anyone help im really stuck with this :(