Warning: Unknown: Invalid date.timezone value 'IST', we selected the timezone 'UTC' for now. in Unknown on line 0

Fatal error: Uncaught mysqli_sql_exception: Access denied for user 'sahitya_up'@'localhost' (using password: YES) in /home/sahitya/public_html/upboard/connect.php:9
Stack trace:
#0 /home/sahitya/public_html/upboard/connect.php(9): mysqli->__construct('localhost', 'sahitya_up', 'c&9usH33', 'sahitya_up')
#1 /home/sahitya/public_html/upboard/index.php(3): include('/home/sahitya/p...')
#2 {main}
  thrown in /home/sahitya/public_html/upboard/connect.php on line 9