After some investigation, it is found that the j.parentnode call is also found in the swfobject.js file in the flash video player plug-in, so the conflict with the one in WP results in this error. terms of settlement:
Right click the home page to view the source code. There are two references to swfobject.js:
Since my home page does not use the player function, it’s OK to delete one of the references, or the most lazy way is to find the / wp-includes/js/swfobject.js file to rename.