Warning: mysqli::__construct(): (HY000/1040): Too many connections in /www/wwwroot/cms/web/config/database.php on line 44

Fatal error: Uncaught Error: mysqli object is already closed in /www/wwwroot/cms/web/config/database.php:45 Stack trace: #0 /www/wwwroot/cms/web/config/database.php(45): mysqli->query() #1 /www/wwwroot/cms/web/vendor/topthink/framework/src/think/Config.php(85): include('...') #2 /www/wwwroot/cms/web/vendor/topthink/framework/src/think/Config.php(67): think\Config->parse() #3 /www/wwwroot/cms/web/vendor/topthink/framework/src/think/App.php(552): think\Config->load() #4 /www/wwwroot/cms/web/vendor/topthink/framework/src/think/App.php(478): think\App->load() #5 /www/wwwroot/cms/web/vendor/topthink/framework/src/think/Http.php(178): think\App->initialize() #6 /www/wwwroot/cms/web/vendor/topthink/framework/src/think/Http.php(155): think\Http->initialize() #7 /www/wwwroot/cms/web/public/index.php(34): think\Http->run() #8 {main} thrown in /www/wwwroot/cms/web/config/database.php on line 45