Warning: include_once(/homepages/4/d75936541/htdocs/PEFSIWebsite/wp-admin/includes/plugin.php): failed to open stream: No such file or directory in /homepages/4/d75936541/htdocs/PEFSIWebsite/wp-content/plugins/advanced-custom-fields-pro/api/api-helpers.php on line 4681

Warning: include_once(): Failed opening '/homepages/4/d75936541/htdocs/PEFSIWebsite/wp-admin/includes/plugin.php' for inclusion (include_path='.:/usr/lib/php5.6') in /homepages/4/d75936541/htdocs/PEFSIWebsite/wp-content/plugins/advanced-custom-fields-pro/api/api-helpers.php on line 4681

Fatal error: Call to undefined function is_plugin_active() in /homepages/4/d75936541/htdocs/PEFSIWebsite/wp-content/plugins/advanced-custom-fields-pro/api/api-helpers.php on line 4687
Crikey! There was an error...
Whoops \ Exception \ ErrorException (E_ERROR)
Call to undefined function is_plugin_active() Whoops\Exception\ErrorException thrown with message "Call to undefined function is_plugin_active()" Stacktrace: #0 Whoops\Exception\ErrorException in /homepages/4/d75936541/htdocs/PEFSIWebsite/wp-content/plugins/advanced-custom-fields-pro/api/api-helpers.php:4687
Stack frames (1)
0
Whoops
\
Exception
\
ErrorException
/
homepages
/
4
/
d75936541
/
htdocs
/
PEFSIWebsite
/
wp-content
/
plugins
/
advanced-custom-fields-pro
/
api
/
api-helpers.php
4687
*  @return    $post_id (int)
*/
 
 
function acf_is_plugin_active() {
    
    // vars
    $basename = acf_get_setting('basename');
    
    
    // ensure is_plugin_active() exists (not on frontend)
    if( !function_exists('is_plugin_active') ) {
        
        include_once( ABSPATH . 'wp-admin/includes/plugin.php' );
        
    }
    
    
    // return
    return is_plugin_active($basename);
    
}
 
 
/*
*  acf_enable_filter
*
*  This function will enable a filter
*
*  @type    function
*  @date    15/07/2016
*  @since    5.4.0
*
*  @param    $post_id (int)
*  @return    $post_id (int)
*/
 
function acf_enable_filter( $filter = '' ) {
    
    // get filters

Environment & details:

empty
empty
empty
empty
empty
Key Value
SERVER_SOFTWARE Apache
REQUEST_URI /
REDIRECT_UNIQUE_ID XEdLc1KlVtwAAJ-OJ94AAAAK
REDIRECT_SCRIPT_URL /
REDIRECT_SCRIPT_URI http://fsi-worldwide.com/
REDIRECT_DOCUMENT_ROOT /kunden/homepages/4/d75936541/htdocs/PEFSIWebsite
REDIRECT_W3TC_ENC _gzip
REDIRECT_HANDLER x-mapp-php4
REDIRECT_STATUS 200
UNIQUE_ID XEdLc1KlVtwAAJ-OJ94AAAAK
SCRIPT_URL /
SCRIPT_URI http://fsi-worldwide.com/
HTTP_USER_AGENT CCBot/2.0 (https://commoncrawl.org/faq/)
HTTP_ACCEPT text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
HTTP_IF_MODIFIED_SINCE Sun, 16 Dec 2018 11:35:10 CST
HTTP_HOST fsi-worldwide.com
HTTP_CONNECTION Keep-Alive
HTTP_ACCEPT_ENCODING gzip
PATH /bin:/usr/bin
SERVER_SIGNATURE
SERVER_NAME fsi-worldwide.com
SERVER_ADDR 195.20.230.39
SERVER_PORT 80
REMOTE_ADDR 54.83.93.85
DOCUMENT_ROOT /kunden/homepages/4/d75936541/htdocs/PEFSIWebsite
REQUEST_SCHEME http
CONTEXT_PREFIX /system-bin/
CONTEXT_DOCUMENT_ROOT /kunden/usr/lib/cgi-bin/
SERVER_ADMIN webmaster@fsi-worldwide.com
SCRIPT_FILENAME /kunden/homepages/4/d75936541/htdocs/PEFSIWebsite/index.php
REMOTE_PORT 38022
REDIRECT_URL /index.php
GATEWAY_INTERFACE CGI/1.1
SERVER_PROTOCOL HTTP/1.1
REQUEST_METHOD GET
QUERY_STRING
SCRIPT_NAME /index.php
STATUS 200
ORIG_PATH_INFO /index.php
ORIG_PATH_TRANSLATED /kunden/homepages/4/d75936541/htdocs/PEFSIWebsite/index.php
PHP_SELF /index.php
REQUEST_TIME_FLOAT 1548176243.41
REQUEST_TIME 1548176243
argv Array ( )
argc 0
Key Value
REDIRECT_UNIQUE_ID XEdLc1KlVtwAAJ-OJ94AAAAK
REDIRECT_SCRIPT_URL /
REDIRECT_SCRIPT_URI http://fsi-worldwide.com/
REDIRECT_DOCUMENT_ROOT /kunden/homepages/4/d75936541/htdocs/PEFSIWebsite
REDIRECT_W3TC_ENC _gzip
REDIRECT_HANDLER x-mapp-php4
REDIRECT_STATUS 200
UNIQUE_ID XEdLc1KlVtwAAJ-OJ94AAAAK
SCRIPT_URL /
SCRIPT_URI http://fsi-worldwide.com/
HTTP_USER_AGENT CCBot/2.0 (https://commoncrawl.org/faq/)
HTTP_ACCEPT text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
HTTP_IF_MODIFIED_SINCE Sun, 16 Dec 2018 11:35:10 CST
HTTP_HOST fsi-worldwide.com
HTTP_CONNECTION Keep-Alive
HTTP_ACCEPT_ENCODING gzip
PATH /bin:/usr/bin
SERVER_SIGNATURE
SERVER_SOFTWARE Apache
SERVER_NAME fsi-worldwide.com
SERVER_ADDR 195.20.230.39
SERVER_PORT 80
REMOTE_ADDR 54.83.93.85
DOCUMENT_ROOT /kunden/homepages/4/d75936541/htdocs/PEFSIWebsite
REQUEST_SCHEME http
CONTEXT_PREFIX /system-bin/
CONTEXT_DOCUMENT_ROOT /kunden/usr/lib/cgi-bin/
SERVER_ADMIN webmaster@fsi-worldwide.com
SCRIPT_FILENAME /kunden/homepages/4/d75936541/htdocs/PEFSIWebsite/index.php
REMOTE_PORT 38022
REDIRECT_URL /index.php
GATEWAY_INTERFACE CGI/1.1
SERVER_PROTOCOL HTTP/1.1
REQUEST_METHOD GET
QUERY_STRING
REQUEST_URI /
SCRIPT_NAME /index.php
STATUS 200
ORIG_PATH_INFO /index.php
ORIG_PATH_TRANSLATED /kunden/homepages/4/d75936541/htdocs/PEFSIWebsite/index.php
0. Whoops\Handler\PrettyPageHandler