BuddyPress.org

The error is in your theme, not in the BuddyPress plugin.

Your theme, jannah_v3.2.0, contains some BuddyPress files.
/home/banoyeir/domains/mysite.com/public_html/wp-content/themes/jannah_v3.2.0/jannah/framework/plugins/class-tielabs-buddypress.php

You need to show the error to the creators of your theme.