hi,
sorry for the delay in response due to support holiday
for activation email.
please make sure you have enable some settings:
goto wp-admin -> lms - > settings -> emails -> email options -> edit activation email template -> check if there is any template there .
please make sure you have enable touch points in lms setting and also enable the welcome email setting in registration form.
Please check if you have setup any activation emails in Buddypress emails from wp-admin >> emails .
If not then please set one .
refer : http://prntscr.com/brx18f
http://prntscr.com/brx1ju