Hi,
I assume that you refer to "My Students" page for teachers. In that page, you can see the number of certificates for each student, and this action take some time to calculate this.
Please log via FTP, I tried but I can not log in, make a back-up to this file: "components\com_guru\views\guruauthor\tmpl\mystudents.php" then replace this file with the attached one (unzip first the attached file). This change will take out the certificates info for students.
For the next Guru version, we will do some changes in order to fix this issue.
Kind Regards,
Alin