Fatal error: Uncaught MongoDB\Driver\Exception\ConnectionTimeoutException: No suitable servers found (`serverSelectionTryOnce` set): [connection refused calling hello on 'localhost:26017']. Topology type: Single in /var/www/cointrackerly.com/html/vendor/mongodb/mongodb/src/functions.php:597
Stack trace:
#0 /var/www/cointrackerly.com/html/vendor/mongodb/mongodb/src/functions.php(597): MongoDB\Driver\Manager->selectServer()
#1 /var/www/cointrackerly.com/html/vendor/mongodb/mongodb/src/Collection.php(667): MongoDB\select_server()
#2 /var/www/cointrackerly.com/html/helpers/formatting_helpers.php(5): MongoDB\Collection->findOne()
#3 /var/www/cointrackerly.com/html/view_coin.php(250): FormattingHelpers::getPercentageDiff()
#4 /var/www/cointrackerly.com/html/router.php(58): include('...')
#5 /var/www/cointrackerly.com/html/router.php(115): Router->handleRequest()
#6 /var/www/cointrackerly.com/html/index.php(3): include_once('...')
#7 {main}
thrown in /var/www/cointrackerly.com/html/vendor/mongodb/mongodb/src/functions.php on line 597