Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /customers/1/7/5/ricoco.nl/httpd.www/wp-content/plugins/security-malware-firewall/lib/CleantalkSP/SpbctWP/Scanner/ScannerQueue.php:464
Stack trace:
#0 /customers/1/7/5/ricoco.nl/httpd.www/wp-content/plugins/security-malware-firewall/lib/CleantalkSP/SpbctWP/Scanner/ScannerQueue.php(504): CleantalkSP\SpbctWP\Scanner\ScannerQueue->countModules()
#1 /customers/1/7/5/ricoco.nl/httpd.www/wp-content/plugins/security-malware-firewall/lib/CleantalkSP/SpbctWP/Scanner/ScannerQueue.php(192): CleantalkSP\SpbctWP\Scanner\ScannerQueue->get_modules_hashes()
#2 /customers/1/7/5/ricoco.nl/httpd.www/wp-content/plugins/security-malware-firewall/inc/spbc-scanner.php(59): CleantalkSP\SpbctWP\Scanner\ScannerQueue::controllerBackground(1521149623, 'get_modules_has...', 0, 20)
#3 [internal function]: spbc_scanner__controller(1521149623)
#4 /customers/1/7/5/ricoco.nl/httpd.www/wp-content/plugins/security-malware-firewall/lib/CleantalkSP/Common/Cron.php(121): call_user_func('spbc_scanner__c...', Array)
#5 /customers/1/7/5/ricoco.nl/httpd.www/wp-content/plugins/security-malware-firewall/lib/CleantalkSP/Common/Cron.php(54): CleantalkSP\Common\Cron->runTasks()
#6 /customers/1/7/5/ricoco.nl/httpd.www/wp-content/plugins/security-malware-firewall/security-malware-firewall.php(360): CleantalkSP\Common\Cron->execute()
#7 /customers/1/7/5/ricoco.nl/httpd.www/wp-settings.php(522): include_once('/customers/1/7/...')
#8 /customers/1/7/5/ricoco.nl/httpd.www/wp-config.php(96): require_once('/customers/1/7/...')
#9 /customers/1/7/5/ricoco.nl/httpd.www/wp-load.php(50): require_once('/customers/1/7/...')
#10 /customers/1/7/5/ricoco.nl/httpd.www/wp-blog-header.php(13): require_once('/customers/1/7/...')
#11 /customers/1/7/5/ricoco.nl/httpd.www/index.php(17): require('/customers/1/7/...')
#12 {main}
  thrown in /customers/1/7/5/ricoco.nl/httpd.www/wp-content/plugins/security-malware-firewall/lib/CleantalkSP/SpbctWP/Scanner/ScannerQueue.php on line 464