Noob question

Can you put your dice roll to one result or always must be two diferent results? I´m having a problem whit advantage and disadvantage rule

Are you rolling the dice from a click on an NPC or PC character sheet or typing it in? If you're the DM, you can go into the campaign settings by looking at the main campaign page, going to Settings , then Game Settings. Your " ROLL QUERIES" field is probably set to Always Roll Advantage . Setting it (and the Whisper Rolls field) to the Toggle option is likely what you're looking for.

If you are talking about the 5e OGL sheet, there is a setting for that on the settings page of the character sheet.  Near the top right of that page.

Thanks!!