Clicking "see user activity in course" leads to a blank page...
Please make sure the activity component is enabled in the settings->buddypress->components.
Please check if the course activity menu is working fine or not, as it leads to this menu only.
Also try re-saving the permalinks.
I tried re-saving the permalinks and resolved the blank page issue.
But still can not link to student's activity page.
Please check the image I have uploaded.
Yep this is an issue in wplms as of now .
Thanks for reporting this issue will be fixed in the upcoming update of vibe course module plugin .