White Screen of Death For New Post

Hi there,

I have been using the GP child theme for my website with elementor and everything seems ok until few days ago I encountered White Screen of Death for new post.

I was using InMotion for my hosting and they have different teams trying to troubleshoot the issue, including disabling the plugins to find the issue. The only thing that they were able to do to get this working was to rename the theme folder. Unfortunately, there wasn't any solutions and they mentioned that it would be the best if I could contact the theme developer to see if there is any other solutions on this issue.

I have these three errors when they debug my website:

Notice: Trying to get property 'ID' of non-object in /home/wwwber5/public_html/cranepedia.com/wp-includes/class-wp-query.php on line 4044
Notice: Trying to get property 'post_title' of non-object in /home/wwwber5/public_html/cranepedia.com/wp-includes/class-wp-query.php on line 4046
Notice: Trying to get property 'post_name' of non-object in /home/wwwber5/public_html/cranepedia.com/wp-includes/class-wp-query.php on line 4048

Prior to having this problem, I wasn't posting any new post for the previous few days.