Social login settings in membership setting does not show any option to enter keys in facebook, linkedn etc. ??
To fix it, please :
1. Go to Your FTP >> Go to folder wp-content/plugins.
2. Create a file and name it with bp-custom.php.
3. Copy this code on the link below and paste into the file and Save.
https://gist.github.com/KaineLabs/9abf0b62e2a91f830f77875c39952c71
After add the code, clear your browser cache and the check again your site.
Ps: Once the settings appears, just remove the code snippet.