'Could not connect to database: The server requested authentication method UNKWN

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HI guys ,

I try to setup centova cast and installation work fine no errors but when I try to configure installation with final web ui I get this error 

Fatal error: Uncaught exception 'Exception' with message 'Could not connect to database: The server requested authentication method unknown to the client' in /usr/local/centovacast/system/class_CCSQL.php:40 Stack trace: #0 /usr/local/centovacast/system/class_CCSQL.php(64): CCSQL->__construct('centova_cast', 'localhost', 'root', '******!', false) #1 /usr/local/centovacast/web/install.php(108): CCSQL::singleton('centova_cast', 'localhost', 'root', '********!') #2 /usr/local/centovacast/web/install.php(436): install_database(Array) #3 {main} thrown in /usr/local/centovacast/system/class_CCSQL.php on line 40