Hello kingho and Code
The problem is if the plugin is in line 64 of the file
Timeline-express-html-excerpts-add-on.php
You must replace line 63 to 67 for this
// Generate the HTML excerpt metabox
Add_action (“timeline_express_metaboxes”, array ($ this, “define_custom_excerpt_metabox”));
// Override the default announcement excerpts with HTML excerpt field
Add_filter (“timeline_express_frontend_excerpt”, array ($ this, “replace_default_timeline_express_excerpt”), 10, 2);
By webmasterenlinea.com
