BuddyPress.org

1.. make sure the template file for your member theme contains /friends/index.php and everything is kosher there.. and then make sure that you don’t have another page/post named friends, and you don’t have a url rewrite rule for friends in your. htaccess file.

2. the avatar upload is most likely due to misconfig of the GD Library.

try here – https://buddypress.org/forums/topic.php?id=2454

3. default for the home page? did you change the theme? can you put up a link?