Warning: Illegal string offset 'total' in /var/www/html/sites/boboli/webspace/override/classes/db/Db.php on line 50

Fatal error: Uncaught Error: Cannot increment/decrement string offsets in /var/www/html/sites/boboli/webspace/override/classes/db/Db.php:50 Stack trace: #0 /var/www/html/sites/boboli/webspace/override/classes/db/DbPDO.php(14): Db->writeLog() #1 /var/www/html/sites/boboli/webspace/classes/db/Db.php(376): DbPDO->_query() #2 /var/www/html/sites/boboli/webspace/classes/db/Db.php(609): DbCore->query() #3 /var/www/html/sites/boboli/webspace/classes/shop/Shop.php(1350): DbCore->executeS() #4 /var/www/html/sites/boboli/webspace/classes/shop/Shop.php(341): ShopCore::findShopByHost() #5 /var/www/html/sites/boboli/webspace/config/config.inc.php(128): ShopCore::initialize() #6 /var/www/html/sites/boboli/webspace/index.php(26): require('/var/www/html/s...') #7 {main} thrown in /var/www/html/sites/boboli/webspace/override/classes/db/Db.php on line 50