The ,”Church” has committed no sins. Only individuals can sin.
The letters to the seven churches in Revelation disproves your statement.
Not true. Not AT ALL true.
Groups of humans take on a collective mindset (think mob behavior) and, as such, can definitely sin.
We all know how a mob can sin. Mob behavior is usually, if not always, a function of the lowest common denominator of the morality of the humans in its group.
So, given that, what about when a church adopts and teaches a heretical, even evil, doctrine (like homosexuality isn't a sin)?
Churches can doom vast numbers of congregants to hell by misleading them. Rarely do individuals have that power.