Search notes:

ORA-32004: obsolete or deprecated parameter(s) specified for … instance

On Oracle 23ai, the init parameter audit_trail is deprecated, but it can still be changed in the spfile: 
alter system set audit_trail=db scope=spfile;
However, if the instance is restarted, the startup command throws ORA-32004: obsolete or deprecated parameter(s) specified for RDBMS instance: 
SQL> shutdown abort
ORACLE instance shut down.

SQL> startup
ORA-32004: obsolete or deprecated parameter(s) specified for RDBMS instance
ORACLE instance started.
…

See also

v$obsolete_parameter
MOS Note 335071.1 What is the Database Initialization Parameter That is Associated to an ORA-32004 Error?
Other Oracle error messages

Index

Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 8 attempt to write a readonly database in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php:78 Stack trace: #0 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(78): PDOStatement->execute(Array) #1 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(30): insert_webrequest_('/notes/developm...', 1759473869, '216.73.216.42', 'Mozilla/5.0 App...', NULL) #2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/development/databases/Oracle/errors/ORA-32004_obsolete-or-deprecated-parameters-specified-for_instance(53): insert_webrequest() #3 {main} thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78