Rekordbox 7 recording issues

Hi community, so my post its because I have the most recent rekordbox version (7), but when I´m trying to record myself, I cannot do that, I tap the round for rec and in the rec pannel, I check the volume of the master out and when I´m ready to record, I press the white round surrounded by a red square and it doesn´t record, the time stays in 0´s and I dont see the time counting, if you can help me, I will appreciate it a lot