Chilling

nano /etc/php/7.4/fpm/php.ini

upload_max_filesize = 128M
post_max_size = 128M
memory_limit = 128M

sudo service php7.4-fpm restart

nano /etc/nginx/sites-available/blog

server{
...
client_max_body_size 128M;
...
}

sudo systemctl reload nginx