It looks like you're new here. If you want to get involved, click one of these buttons!
On my installation the url has two forward slashes at the end. Is this normal? For example: it is www.example.com//. If it's not normal, is there a reason this may be caused?
This is a very common thing I see whenever I log in to someone's Sendy's installation to troubleshoot something.
The issue is that you accidentally included a trailing slash in your APP_PATH. The commented instructions for APP_PATH remind users not to include a trailing slash in their APP_PATH but some users misses this.