为什么Wordpress要创建一个巨大的error_log文件?

I have a small Wordpress website hosted on my shared Hostgator server. I wasn't paying much attention to it, because the website is working fine, until recently when I noticed a ~40GB error log file in the root folder. I wasn't able to open the file so I delete it and waited for the file to show up again. Few seconds later the file was there again with this line inside:I have a small Wordpress website hosted on my s