Buddypress user activation issue

happy Thursday!

I couldnt find a BP support menu item from support – ?? hope ist ok to post here.

My site at weightfan.com is a multi site using Blogs/MU and BP.

I have just noticed that most of my users have /can not successfully activate there accounts! Oops.

I used a plugin called “unsuccessful” to ascertain this and even then half the accounts could not be activated manually.

WHY??

Is it safe to delete the BP plugin a re-install? – just a thought on how to fix the issue.

Ideas please.

Thanks

John