Two days ago, after finishing the v5_boke8 topic, I uploaded it to the zblog blog for installation test. During the comment test, the error prompt "Error reason: the comment content cannot be empty or too long" tragically appeared when I submitted the comment. Fortunately, after all, I imitated several topics to ZBlog, and also knew that the reason for the problem was that the JS calls related to the comment were not added, As long as it is added, there is no problem. Content cannot be empty or too long Solution: Enter the background of ZBlog blog, click "File Management", then enter the THEMES directory, and select topics where comments cannot be submitted normally For single.htm under the TEMPLATE directory