Posts Displaying Incorrect Headline

This is a repost from:
https://ww.wp.xz.cn/support/topic/posts-displaying-incorrect-header-wrong-title/#post-14860065

`I’m having a problem with a new travel blog where each new post I create isn’t displaying the title of the post but rather:

Hello World
Post date

|

Post author name

I’ve tried disabling the GenerateBlocks plugin but that doesn’t fix the problem. Any help would be appreciated.

The page I need help with: [log in to see the link]