php parse error

Hi !
I have this error
Parse error: syntax error, unexpected token ")" in /home/mywork/vendor/codeigniter4/framework/system/Autoloader/Autoloader.php on line 165
because of the line
spl_autoload_register($this->loadClassmap(...), true);
I am running codeigniter 4.6.0 on php8.0.
I spent hours on this error and now I ask some help because I really have no idea how to fix it !!!
Someone a solution ?
Thanks in advance.