Foreign citizens age 18 and above need to document that they do not have an active covid-19 infection in order to enter Sweden, or present the EU Covid Certificate or equivalent when entering from EEA*. More information here https://polisen.se/en/the-swedish-police/the-coronavirus-and-the-swedish-police/travel-to-and-from-sweden/#NO_DK_UK
To limit the spread of the COVID-19 virus, and in accordance with the State of Emergency announced by the Romanian authorities on the 16th of March, the Embassy has reduced the number of employees present in the Chancery. The Embassy’s operational capacity is therefore limited and at the moment our work is focused on the most pressing and urgent cases. We ask for your patience and understanding. Avoid visiting the Embassy for the time being if it is not absolutely necessary. Opening hours for the reception and telephone switchboard will remain the same until further notice.
Information about how to apply for a new Swedish paspport and/or ID-card you can find here
You do need a valid travel document. Read more on the web page of the Swedish Migration Agency.
Information about studying Swedish in Sweden, Romania or online you can find here
Information about what you can do if you suspect that a child has been sexually abused you can find here