I am not receiving any reward for February. But I received reward for January

The brave reward will automatically disabled when the next payment date arrived (in this case is Feb 5, 2021). Brave browser asked me to enable the brave reward at Feb 5 and I am not sure why that happened. Does that also happen to you guys?
I received 0.750 BAT at January but i didn’t receive anything on February. Could anyone help me with that?
Thank you!