Getting error on Home Page of 7.8.2

d100_Booking_Leads.svg Failed to load resource: the server responded with a status of 403 (Forbidden)

I tried to add a custom module to the dashlets and I cannot undo the action now as I’m getting a blank screen. Any help appreciated. thanks

try to remove the link to facebook - worked for me:

go to admin --> Activity Streams --> remove the “mark” in “Facebook”
press save