sabikhan

Hello, Site restored on back date but its temporary solution, when i again login into wordpress dashboard same error occur. WordPress experts are not able to provide any solution for this big issue. if you found any permanent solution please post here.
thanks

Hello wordpress team please help me to resolve this issue. I tried to do everything you suggested. One thing i noticed that once i restore backup file and database through hosting website start working. But again when i try to login and start using wordpress admin dashboard. the website is again down and giving http 500 error. I already restored wordpress file through ftp but result are same. please help
Thanks

Hello Alex I did all the steps as suggested by moderator so website started working fine. But again when i login into WordPress dashboard same error occurred so it is not resolved yet.

Hi, I tried to update all files through ftp. Website started. but again once i login into wordpress admin page and tried to edit website it shows same fatal error and website down.
Fatal error: Uncaught Error: Call to undefined function nocache_headers() in /home/u526093132/domains/contesasia.com/public_html/wp-admin/admin.php:36 Stack trace: #0 /home/u526093132/domains/contesasia.com/public_html/wp-admin/edit.php(10): require_once() #1 {main} thrown in /home/u526093132/domains/contesasia.com/public_html/wp-admin/admin.php on line 36

Hello, I tried first with theme but not worked. when i am trying to connect throught ftp i am getting error message

Status: Connecting to [2606:4700:3037::ac43:a5cb]:21…
Error: Connection timed out after 20 seconds of inactivity
Error: Could not connect to server
Status: Waiting to retry…
Status: Resolving address of contesasia.com
Status: Connecting to [2606:4700:3037::ac43:a5cb]:21…

One more thing i want to mention that i used EWWW image optimizer plugin yesterday but after using that plugin i deactivate and delete plugin on the same time

which files you are asking ? wp admin or any others. I am not so technical person but i believe if i try to change wp content then i will lost all my website content. so kindly share me any specific details