The small town of Bodó has suspended its local lottery operations after raising BR8m ($1.5m) in ten months.
President Lula has summoned Caixa's leadership to explain plans for a state-run betting platform, amid internal doubts about whether the project will move forward.
The new laws were approved by 71 MPs in a recent vote.
The senator warned that creating a public platform risks encouraging gambling addiction among vulnerable Brazilians.
The partnership aims to strengthen the fight against match-fixing and foster ethical standards in Brazil.
The five-year global licensing agreement will see Brightstar create a series of instant, draw-based and digital lottery games inspired by Avanti's popular greeting card brand.
Singapore Pools is a government-run lottery operator.
Executive exits following a year and a half with the Dutch lottery operator.
The operator's restated year-on-year revenue has declined by 3% year-on-year.
Allwyn becomes world's largest listed lottery company and second-largest gaming operator in the latest deal that marks the latest in a trend of gaming and lottery mergers.