help installing

hi i think i have done every step correctly but i still and not getting a web page to upload any help would be appreciated i can even give u the info for my web host to see if u can identify what the issue may be 

[19-Aug-2023 20:51:47 UTC] PHP Fatal error: Uncaught PDOException: SQLSTATE[HY000] [1045] Access denied for user 'SQL_USER'@'localhost' (using password: YES) in /home/thesyndi/public_html/linking/main.conf.php:5 Stack trace: #0 /home/thesyndi/public_html/linking/main.conf.php(5): PDO->__construct('mysql:dbname=DB...', 'SQL_USER', 'SQL_PASS') #1 /home/thesyndi/public_html/linking/index.php(4): require('/home/thesyndi/...') #2 {main} thrown in /home/thesyndi/public_html/linking/main.conf.php on line 5 [19-Aug-2023 20:55:55 UTC] PHP Fatal error: Uncaught PDOException: SQLSTATE[HY000] [1045] Access denied for user 'SQL_USER'@'localhost' (using password: YES) in /home/thesyndi/public_html/linking/main.conf.php:5 Stack trace: #0 /home/thesyndi/public_html/linking/main.conf.php(5): PDO->__construct('mysql:dbname=DB...', 'SQL_USER', 'SQL_PASS') #1 /home/thesyndi/public_html/linking/index.php(4): require('/home/thesyndi/...') #2 {main} thrown in /home/thesyndi/public_html/linking/main.conf.php on line 5 [19-Aug-2023 20:55:56 UTC] PHP Fatal error: Uncaught PDOException: SQLSTATE[HY000] [1045] Access denied for user 'SQL_USER'@'localhost' (using password: YES) in /home/thesyndi/public_html/linking/main.conf.php:5 Stack trace: #0 /home/thesyndi/public_html/linking/main.conf.php(5): PDO->__construct('mysql:dbname=DB...', 'SQL_USER', 'SQL_PASS') #1 /home/thesyndi/public_html/linking/index.php(4): require('/home/thesyndi/...') #2 {main} thrown in /home/thesyndi/public_html/linking/main.conf.php on line 5 [19-Aug-2023 21:05:17 UTC] PHP Fatal error: Uncaught PDOException: SQLSTATE[HY000] [1045] Access denied for user 'SQL_USER'@'localhost' (using password: YES) in /home/thesyndi/public_html/linking/main.conf.php:5 Stack trace: #0 /home/thesyndi/public_html/linking/main.conf.php(5): PDO->__construct('mysql:dbname=DB...', 'SQL_USER', 'SQL_PASS') #1 /home/thesyndi/public_html/linking/index.php(4): require('/home/thesyndi/...') #2 {main} thrown in /home/thesyndi/public_html/linking/main.conf.php on line 5 [19-Aug-2023 21:06:11 UTC] PHP Fatal error: Uncaught PDOException: SQLSTATE[HY000] [1045] Access denied for user 'SQL_USER'@'localhost' (using password: YES) in /home/thesyndi/public_html/linking/main.conf.php:5 Stack trace: #0 /home/thesyndi/public_html/linking/main.conf.php(5): PDO->__construct('mysql:dbname=DB...', 'SQL_USER', 'SQL_PASS') #1 /home/thesyndi/public_html/linking/index.php(4): require('/home/thesyndi/...') #2 {main} thrown in /home/thesyndi/public_html/linking/main.conf.php on line 5 [19-Aug-2023 21:06:11 UTC] PHP Fatal error: Uncaught PDOException: SQLSTATE[HY000] [1045] Access denied for user 'SQL_USER'@'localhost' (using password: YES) in /home/thesyndi/public_html/linking/main.conf.php:5 Stack trace: #0 /home/thesyndi/public_html/linking/main.conf.php(5): PDO->__construct('mysql:dbname=DB...', 'SQL_USER', 'SQL_PASS') #1 /home/thesyndi/public_html/linking/index.php(4): require('/home/thesyndi/...') #2 {main} thrown in /home/thesyndi/public_html/linking/main.conf.php on line 5

Changed Status from Pending to Closed