Members can see emails each other

By default wpForo doesn't allow this. This is a result of your wrong configuration or users insert their emails as username or display name.

Make sure you have not enabled "Can view Email" permission for Guest and other non-admin Usergroups in Dashboard > Forums > Usergroups admin page.

Then navigate to Dashboard > Forums > Dashboard admin page and click on [Delete all caches] button.

Do you mean it's impossible?

How to let members to communicate each other?

"Dashboard > Forums > Dashboard admin page and click on [Delete all caches] button." ------ I cannot find this button. Could you please show me this button on a screenshot?

Thank you!

Ok, You should try to enable the "Front - Can view member email" permission for Usergroups you want. By default, the "Registered"  usergroup is the usergroup of regular users.

Then navigate to Dashboard > Forums > Dashboard and click on the [Delete all caches] button.

As an alternative I'd also suggest wpForo Private Messages addon. This is a good solution for members private conversation: https://gvectors.com/product/wpforo-private-messages/

I've done these, but still doesn't work. Can I give you the User & Pass privately, and you have a look for me?

Thanks

Peter

Yes, please send it to support[at]gvectors.com email address. We'll check it within next 1-2 days.