fatal error

Unfortunately this means you’re either:

1. not running uWSGI with the built-in PHP interpreter; or
2. are running a very old version of uWSGI.

You also need this: https://github.com/unbit/uwsgi/pull/660

https://uwsgi-docs.readthedocs.org/en/latest/PHP.html#uwsgi-api-support

Here is an example:

cat /etc/uwsgi/apps-available/wordpress-blog.ini
[uwsgi]
uid = www-data
gid = www-data
chown-socket = www-data
plugins = php,cache
php-sapi-name = apache
php-docroot = /srv/www/example.com/public_html
php-allowed-ext = .php
php-index = index.php
php-set = date.timezone=Australia/Sydney
processes = 25
cheaper = 5
cache2 = name=uwsgi_c1,items=1024,blocksize=4096,bitmap=1,purge_lru=1
stats = :7500

and

cat /srv/www/example.com/public_html/wp-config.php | grep UWSGI
define( 'UWSGI_CACHE', 'uwsgi_c1' );
$batcache = array('group'=>UWSGI_CACHE, 'remote'=>1);