Backup does not work under ios and android for me

Backup does not work under ios and android for me

FDSQLiteBackup.Database := sFile;
FDSQLiteBackup.DestDatabaseObj := FDConnectionLocal.CliObj;
FDSQLiteBackup.DestMode := smCreate;
FDSQLiteBackup.Backup;

when use get table names it is empty

FDConnectionLocal.GetTableNames('','','', pSLTables);

if pSLTables.IndexOf(TableName) = -1 then

this code works well on Win, Mac.

Regards