Warning: Constant DATE_RFC7231 already defined in /customers/9/b/f/rosario.be/httpd.www/cms/includes/bootstrap.inc on line 258

Fatal error: During inheritance of PDO: Uncaught ArgumentCountError: Too few arguments to function _drupal_error_handler(), 4 passed in /customers/9/b/f/rosario.be/httpd.www/cms/includes/theme.maintenance.inc on line 42 and exactly 5 expected in /customers/9/b/f/rosario.be/httpd.www/cms/includes/bootstrap.inc:2574
Stack trace:
#0 /customers/9/b/f/rosario.be/httpd.www/cms/includes/theme.maintenance.inc(42): _drupal_error_handler(8192, 'Return type of ...', '/customers/9/b/...', 1317)
#1 /customers/9/b/f/rosario.be/httpd.www/cms/includes/theme.maintenance.inc(42): require_once()
#2 /customers/9/b/f/rosario.be/httpd.www/cms/includes/bootstrap.inc(2857): _drupal_maintenance_theme()
#3 /customers/9/b/f/rosario.be/httpd.www/cms/includes/errors.inc(179): drupal_maintenance_theme()
#4 /customers/9/b/f/rosario.be/httpd.www/cms/includes/bootstrap.inc(2594): _drupal_log_error(Array, true)
#5 [internal function]: _drupal_exception_handler(Object(ArgumentCountError))
#6 {main} in /customers/9/b/f/rosario.be/httpd.www/cms/includes/database/database.inc on line 187