Step 1: Have you tried the magic link in the invitation mail?
Take a few steps back to the invitation mail you've received. In this email, there's a link granting you access to sign in. Click it.
Step 2: Still not working? Sign in manually.
If the magic link don't let you enter the app, please follow these instructions.
At first, click at the Sign in manually button in the app.
Then go back to the invitation email.
Below the Click here to sign in link, there's a key token in the invitation email. Copy it and paste it in the box appearing when you've pressed Sign in manually. Then click Enter.
Step 3: Still not working? Don't fret, we're here for you.
Just send us an email at firstname.lastname@example.org and one of our tech gurus will respond to your request in a jiffy!