Fix URL Preview and Activity Meta for Olympus Theme

Please use this CSS code

.youzer .yz-post-attachments .yz-wall-link-content .yz-wall-link-thumbnail, .youzer .yz-post-attachments .yz-wall-link-content .yz-wall-link-thumbnail + .yz-wall-link-data {
    display: block !important;
}

.logged-in .youzer .activity-meta {
    display: inherit !important;
}