This kind of issue is usually caused by either conflict with other plugins or the active theme.
So, please deactivate the plugins/theme one by one and check after each deactivation to find the problem maker.
At first, deactivate the "comments like dislike" and the "file attach" plugin.
Please press CTRL+ F5 (twice) on the frontend before checking.
In case you want to say thank you! 🙂 We'd really appreciate if you leave a good review on the plugin page. This is the best way to say thank you to this project and the support team.
@asti One by one I worked down through our plugins. After I deactivated each one, I checked to see if the Reply button was working or not. I did this test on 22 plugins. The 23rd plugin is WP-SpamShield. When I deactivated that plugin, the Reply button started working again. We have had WP-SpamShield for a long time and we like it. Looks like there is some kind of a conflict between WP-SpamShield and wpDiscuz. Do you have any idea as to what could be done about it? Does wpDiscuz have built-in features that could make WP-SpamShield unnecessary?
In case you want to say thank you! 🙂 We'd really appreciate if you leave a good review on the plugin page. This is the best way to say thank you to this project and the support team.
Looks like Akismet is the way to go. I tried to contact plugin support for wp-spamshield and found out that the company that made it (Red Sand Media Group) is now out of business. Their web site is down, and their phone number is disconnected.