@caordawebsol — in your case, it is probably that the amount of data in this file [1] is too much to be processed by your server, so the process is timing out and closing before the task finishes. This, depending on the configuration of the web server, causes a “500 Internal Server Error”.
What you can do for now is to use FTP or the file manager of your hosting account to delete that file. You will lose some of the security logs, but it should help you reduce the execution time which is what seems to be affecting the plugin in your website.
Let me know if this helps, otherwise we can continue investigating.
IMPORTANT: You have shared some sensitive information about your website in your comment, I think it is too late to delete/edit it so I suggest you to re-generate the secret keys of your WordPress installation so no one else can use this information to log into your administration panel. You were able to update your comment, good; be sure to never share sensitive information about your website in the forums.