@r-a-y, I followed the instructions in [https://codex.buddypress.org/releases/1-5-developer-and-designer-information/#theme] and solved the problem. Tks.
The following are the procedures:
— Member settings pages are blank
BuddyPress 1.5 comes with brand-new templates so you can style your member settings pages. However, if you’re using an older child theme, you will need to copy over these templates to your WP theme. To fix this problem, copy over the folder [/plugins/buddypress/bp-themes/bp-default/members/single/settings/] directly to your WP theme’s folder.