[mubiesam]

seems the link is missing, please refer here

[mubiesam]

Finally found the cause is the Woocommerce plugin which disappeared the toolbar, a solution recommended by @alicia250 solved the problem.
Thanks

[mubiesam]

@vapvarun did change to activate BuddyPress at the network level, but only https://lt.johocen.com/ will not display the toolbar, the other 2 sites are OK.

Will it be conflict with the theme used? where should i look into?

Your suggestion is highly appreciated.
Sam

[mubiesam]

I should say “https://lt.johocen.com/ is the only site installed activated with these 2 plugins.

[mubiesam]

As stated “It was there, but not sure what was the cause, now it disappeared.”

I had removed all 3 plugins…BuddyPress, BuddyPress Registration Options, and Super Socializer. While installed back the Super Socializer, found something weird…

My multisite main site https://johocen.com/ show the toolbar correctly, but subsite https://lt.johocen.com/ just disappeared.

It means, without BuddyPress and BuddyPress Registration Options, the toolbar problem is still there, but what happened was, https://lt.johocen.com/ is the only site installed with these 2 plugins.

It sounds strange, but it seems the toolbar was disappeared right after I had added this line at the end of bp-registration-options/includes/core.php
add_action( 'the_champ_user_successfully_created', 'bp_registration_options_notify_pending_user', 10, 1 );
But now even I had removed BuddyPress and BuddyPress Registration Options, the problem is still there.

I noticed that even the plugin removed, but the database created for plugin is still stored, is there a way to completely removed the plugin and it’s db?

This problem is driving me crazy, any help is highly appreciated.