Multistore magento error: Call to a member function getDefaultCurrencyCode()

Question

I have a running version of magento 2.3, php 7.3 and nginx. The default store and another store work fine and are displayed correctly.

Whenever i try to use a different store code other than the 2 working, I receive a PHP error upon loading the page.

Fatal error: Uncaught Error: Call to a member function getDefaultCurrencyCode() on null in /var/www/html/magento2/vendor/magento/module-store/App/Action/Plugin/Context.php:146 
Stack trace: 
#0 /var/www/html/magento2/vendor/magento/module-store/App/Action/Plugin/Context.php(101): Magento\Store\App\Action\Plugin\Context->updateContext(Object(Magento\Store\Model\Store\Interceptor)) 
#1 /var/www/html/magento2/vendor/magento/framework/Interception/Interceptor.php(121): Magento\Store\App\Action\Plugin\Context->beforeDispatch(Object(Magento\Cms\Controller\Index\Index\Interceptor), Object(Magento\Framework\App\Request\Http)) 
#2 /var/www/html/magento2/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Cms\Controller\Index\Index\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Request\Http)) 
#3 /var/www/html/magento2/generated/code/Magento/Cms/Controller/Index/Index/Interceptor.php(26): Magento\Cms\Controller\Index\Index\Interceptor->___callPlugins('dispatch', Array, Array) 
#4 /var/w in /var/www/html/magento2/vendor/magento/module-store/App/Action/Plugin/Context.php on line 146

The php files in the stack trace are still untouched, so default.

My nginx config for the multistore is:

upstream fastcgi_backend {
 server unix:/run/php/php7.3-fpm.sock;
}
map $http_host $MAGE_RUN_CODE {
 site_not_working.server.local site_not_working_nl_20;
 site_not_working2.server.local site_not_working2_nl_7;
 site_working.server.local site_working_nl_26;
 default_working.com default;
}
server {
 listen 80;
 server_name default_working.com site_working.local site_not_working2.server.local site_not_working.server.local;
 set $MAGE_ROOT /var/www/html/magento2/;
 include /var/www/html/general_configs/nginx.conf;
}

The included conf is:

root $MAGE_ROOT/pub;
index index.php;
autoindex off;
charset UTF-8;
error_page 404 403 = /errors/404.php;
location /.user.ini {
 deny all;
}
# PHP entry point for setup application
location ~* ^/setup($|/) {
 root $MAGE_ROOT;
 location ~ ^/setup/index.php {
 fastcgi_pass fastcgi_backend;
 fastcgi_param PHP_FLAG "session.auto_start=off \n suhosin.session.cryptua=off";
 fastcgi_param PHP_VALUE "memory_limit=756M \n max_execution_time=600";
 fastcgi_read_timeout 600s;
 fastcgi_connect_timeout 600s;
 fastcgi_index index.php;
 fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
 include fastcgi_params;
 }
 location ~ ^/setup/(?!pub/). {
 deny all;
 }
 location ~ ^/setup/pub/ {
 add_header X-Frame-Options "SAMEORIGIN";
 }
}
# PHP entry point for update application
location ~* ^/update($|/) {
 root $MAGE_ROOT;
 location ~ ^/update/index.php {
 fastcgi_split_path_info ^(/update/index.php)(/.+)$;
 fastcgi_pass fastcgi_backend;
 fastcgi_index index.php;
 fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
 fastcgi_param PATH_INFO $fastcgi_path_info;
 include fastcgi_params;
 }
 # Deny everything but index.php
 location ~ ^/update/(?!pub/). {
 deny all;
 }
 location ~ ^/update/pub/ {
 add_header X-Frame-Options "SAMEORIGIN";
 }
}
location / {
 try_files $uri $uri/ /index.php$is_args$args;
}
location /pub/ {
 location ~ ^/pub/media/(downloadable|customer|import|theme_customization/.*\.xml) {
 deny all;
 }
 alias $MAGE_ROOT/pub/;
 add_header X-Frame-Options "SAMEORIGIN";
}
location /static/ {
 # Uncomment the following line in production mode
 # expires max;
 # Remove signature of the static files that is used to overcome the browser cache
 location ~ ^/static/version {
 rewrite ^/static/(version\d*/)?(.*)$ /static/2ドル last;
 }
 location ~* \.(ico|jpg|jpeg|png|gif|svg|js|css|swf|eot|ttf|otf|woff|woff2|json)$ {
 add_header Cache-Control "public";
 add_header X-Frame-Options "SAMEORIGIN";
 expires +1y;
 if (!-f $request_filename) {
 rewrite ^/static/(version\d*/)?(.*)$ /static.php?resource=2ドル last;
 }
 }
 location ~* \.(zip|gz|gzip|bz2|csv|xml)$ {
 add_header Cache-Control "no-store";
 add_header X-Frame-Options "SAMEORIGIN";
 expires off;
 if (!-f $request_filename) {
 rewrite ^/static/(version\d*/)?(.*)$ /static.php?resource=2ドル last;
 }
 }
 if (!-f $request_filename) {
 rewrite ^/static/(version\d*/)?(.*)$ /static.php?resource=2ドル last;
 }
 add_header X-Frame-Options "SAMEORIGIN";
}
location /media/ {
 try_files $uri $uri/ /get.php$is_args$args;
 location ~ ^/media/theme_customization/.*\.xml {
 deny all;
 }
 location ~* \.(ico|jpg|jpeg|png|gif|svg|js|css|swf|eot|ttf|otf|woff|woff2)$ {
 add_header Cache-Control "public";
 add_header X-Frame-Options "SAMEORIGIN";
 expires +1y;
 try_files $uri $uri/ /get.php$is_args$args;
 }
 location ~* \.(zip|gz|gzip|bz2|csv|xml)$ {
 add_header Cache-Control "no-store";
 add_header X-Frame-Options "SAMEORIGIN";
 expires off;
 try_files $uri $uri/ /get.php$is_args$args;
 }
 add_header X-Frame-Options "SAMEORIGIN";
}
location /media/customer/ {
 deny all;
}
location /media/downloadable/ {
 deny all;
}
location /media/import/ {
 deny all;
}
location /errors/ {
 location ~* \.xml$ {
 deny all;
 }
}
location ~ ^/(index|get|static|errors/report|errors/404|errors/503|health_check)\.php$ {
 try_files $uri =404;
 fastcgi_pass fastcgi_backend;
 fastcgi_buffers 1024 4k;
 fastcgi_param PHP_FLAG "session.auto_start=off \n suhosin.session.cryptua=off";
 fastcgi_param PHP_VALUE "memory_limit=756M \n max_execution_time=18000";
 fastcgi_read_timeout 600s;
 fastcgi_connect_timeout 600s;
 fastcgi_index index.php;
 fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
 #added fastcgi params for store support
 fastcgi_param MAGE_RUN_CODE $MAGE_RUN_CODE;
 fastcgi_param MAGE_RUN_TYPE store;
 #fastcgi_param MAGE_RUN_TYPE store;
 include fastcgi_params;
}
include /var/www/html/magento2/pub/ub-tool/nginx.conf;
gzip on;
gzip_disable "msie6";
gzip_comp_level 6;
gzip_min_length 1100;
gzip_buffers 16 8k;
gzip_proxied any;
gzip_types
 text/plain
 text/css
 text/js
 text/xml
 text/javascript
 application/javascript
 application/x-javascript
 application/json
 application/xml
 application/xml+rss
 image/svg+xml;
gzip_vary on;
# Banned locations (only reached if the earlier PHP entry point regexes don't match)
location ~* (\.php$|\.phtml$|\.htaccess$|\.git) {
 deny all;
}

My php conf for the .sock-file is

[magento]
user = magento
group = magento
listen = /var/run/php/php7.3-fpm-magento.sock
listen.owner = www-data
listen.group = www-data
php_admin_value[disable_functions] = exec,passthru,shell_exec,system
php_admin_flag[allow_url_fopen] = off
pm = dynamic
pm.max_children = 10
pm.start_servers = 5
pm.min_spare_servers = 2
pm.max_spare_servers = 7
chdir = /

Is anyone able to notice what is causing the error on the module?

Answer 1

this issue was resolved by replacing the line

$defaultStore->getDefaultCurrencyCode()

to

$store->getDefaultCurrencyCode()

in the file /vendor/magento/module-store/App/Action/Plugin/Context.php