Invitation not received message

Question: I have owner access to all of our BigCommerce stores (sandboxes and prod). StagingPro is installed in the production store and I can see the StagingPro dashboard. I have created a repo in the companies github repo as described in the documents.
I added the stagingpro user, but when I paste the url in BigCommerce, I get invite not received message as shown below:

Open

Answer:
Recommend checking the following article to get familiarised with StagingPro.
StagingPro Onboarding

As it relates to ‘GitHub’, please confirm if you tried the following steps for adding GitHub accounts?
Add GitHub accounts