Issues After Hestia CP Update – From 400 Bad Request to 500 Internal Server Error

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Backup all your sites, conf, or if you can, better create a snapshot of your server.

Then try to execute again the migration script but this time we need to modify it a bit:

First, modify /etc/nginx/nginx.conf and restore the original values for large_client_header_buffers

large_client_header_buffers     4 8k;

And restart nginx:

systemctl restart nginx

Now modify the migration script and run it again.

cd /usr/local/hestia/install/upgrade/manual/
cp migrate_ngnix_apache_nginx-php-fpm.sh migrate_ngnix_apache_nginx-php-fpm.sh.ori
sed -i '22,30 s/^/#/' migrate_ngnix_apache_nginx-php-fpm.sh
./migrate_ngnix_apache_nginx-php-fpm.sh

Then, check if the issue is resolved.

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