To: wordpress.org I opened a new blog in wordpress.org system-which is hosted in siteground.com I have a problem: when trying to post in my blog I suddenly cannot do it-just with no reason. I get the following error announcement: Warning: Creating default object from empty value in /home/customer/www/disability5.com/public_html/wp-admin/includes/post.php on line 736 Warning: Cannot modify header information - headers already sent by (output started at /home/customer/www/disability5.com/public_html/wp-admin/includes/post.php:736) in /home/customer/www/disability5.com/public_html/wp-admin/admin-header.php on line 9 How can this problem be fixed? assaf benyamni. 1)my website in wordpress system: disability5.com the url: https://disability5.com/ 2)I use windows 10 operating system, and google chrome browser. 3)my https://disability5.com/ is connected to my ass.benyamini@yandex.com 4)my another email addresses: 029547403@walla.co.il or: asb783a@gmail.com or: assaf197254@yahoo.co.il or: a32assaf@outlook.com or: assaf002@mail2world.com assaffff@protonmail.com 5)the plugins installed in my wordpress.org blog: A. All in One SEO B. Enable Classic Editor C. Polylang D. Polylang - Country Detection E. SiteGround Central F. SiteGround Optimizer G. SiteGround Security 6)my phone numbers: at home-972-2-6427757. cellular-972-58-6784040. fax-972-77-2700076. 7)my postal address: assaf benyamini, 115/4 costa rica street, qiriat menahem neighborhood. Jerusalem, ISRAEL, zip: 9662592. 8)my first language is Hebrew()עברית.