求助，这个数据库错误怎么解决?

Fatal error: Uncaught PDOException: SQLSTATE[HY000] [1044] Access denied for user 'MYcommunity'@'localhost' to database 'MYcommunity' in /www/wwwroot/test.example.com/vendor/catfan/medoo/src/Medoo.php:323 Stack trace: #0 /www/wwwroot/test.example.com/src/Library/Db.php(42): Medoo\Medoo->__construct() #1 /www/wwwroot/test.example.com/src/Initializer/Container.php(39): MDClub\Library\Db->__construct() #2 /www/wwwroot/test.example.com/vendor/pimple/pimple/src/Pimple/Container.php(118): MDClub\Initializer\Container->MDClub\Initializer\{closure}() #3 /www/wwwroot/test.example.com/src/Initializer/Container.php(20): Pimple\Container->offsetGet() #4 /www/wwwroot/test.example.com/src/Initializer/App.php(114): MDClub\Initializer\Container->get() #5 /www/wwwroot/test.example.com/src/Initializer/Facade.php(21): MDClub\Initializer\App::createFacade() #6 /www/wwwroot/test.example.com/src/Model/Abstracts.php(506): MDClub\Initializer\Facade::__callStatic() #7 /www/wwwroot/test.example.com/sr in /www/wwwroot/test.example.com/vendor/catfan/medoo/src/Medoo.php on line 323

Fatal error: Uncaught ErrorException: Trying to access array offset on value of type bool in /www/wwwroot/test.example.com/src/Initializer/Error.php:52 Stack trace: #0 /www/wwwroot/test.example.com/src/Initializer/Error.php(52): MDClub\Initializer\Error->appError() #1 [internal function]: MDClub\Initializer\Error->appShutdown() #2 {main} thrown in /www/wwwroot/test.example.com/src/Initializer/Error.php on line 52