"The problem is that for $5,000, the most you'll be able to buy is a hamburger and maybe a small dessert," Trump said, in reference to his Mar-a-Lago resort.
The FEC confirmed that its electronic filing system was offline but declined to comment further on the cause of the outage.
Bolsonaro had been ordered by the Supreme Court to surrender his passport over different allegations, including corruption, money laundering and tax evasion.