Sauvegarde depuis Mysql en erreur

Fatal error: Uncaught TypeError: _sqlite_link(): Return value must be of type ?PDO, mysqli returned in ~/ecrire/req/sqlite_generique.php:2096 

Stack trace: #0 ~/ecrire/req/sqlite_generique.php(954): _sqlite_link('') 
#1 ~/ecrire/req/sqlite_generique.php(1772): spip_sqlite_fetch(Object(Spip\Sql\Sqlite\PDOStatement)) 
#2 ~/ecrire/base/abstract_sql.php(1278): spip_sqlite_table_exists('spip_annuaires', 'dump', true)