Mary is a sinner, how? When did She most probably committed actual and personal sin, and what is the nature of sin?

**NOTE :** This question is aimed at narrowing down the probability, when did Mary committed an actual and personal sin, and what is the most likely nature of sin that She would commit? Protestant and Bible Alone Believers do not accept the Dogma on Immaculate Conception for lack of biblical support, so its only fair for Catholics, that we also, cannot accept the accusation that Mary is a sinner, for the same reason that it also lacking in biblical support. And so, its now the Protestant and Bible Alone Believers turn to prove their accusation and judgement that Mary is a sinner, by providing us biblical proof? Sin of pride, lust, envy, gluttony, sloth, etc. What is the most probable nature of sin that a lowly handmaid, a human being with profound humility, who is daily praying and embracing the Will of the Father, can fall into? Let's check on Mary's age. At age 1 to 3, is the age of innocence, therefore, Mary cannot commit sin here at this age. At age 3 to 13, Mary had spent her life in the Temple as a servant of God. Most likely, Satan cannot offer any of his temptations as he did to Jesus as money, fame and power will not entice the young Mary of this non-sense. https://www.mdrevelation.org/the-presentation-of-mary-in-the-temple/ At age 13, Angel Gabriel having faculties to see the soul of human being, saw Mary's soul as "full of grace", and telling us that in Mary's soul, the Lord presence can be seen. -Dominus tecum. Before conception, during conception and after giving birth it is unlikely that Mary can commit sin, as She was overshadowed by the Holy Spirit. And so, for all the Bible Alone Believers and wizards here at CSE, we only have one choices left. Mary is possible to commit sin, after giving birth to Jesus Christ. But what is the nature of sin, that a person who is docile to the voice of God, and had shown holiness and righteousness in her life,so, the simple and direct question is... What is the nature of sin that Mary would fall into after giving birth to Jesus Christ? **Can anyone tell us according to the bible, what is the nature of sin that Mary had fallen into, after giving birth to Jesus Christ?** Catholic, Protestant and Christian can answer this question, using only bible as the source and nothing else.