Yes. We have documented this thoroughly here.
Some of her key failed claims to what God showed her include:
• The End of the World (multiple times)
• The day and the hour of Jesus’s return (multiple times)
• The 1843 Miller Chart (which changed 3 times)
Because of this, Ellen White violated the Third Commandment repeatedly (Exodus 20:7) which is bearing the name of God falsely, and—in God’s economy—she would have been stoned to death for being a false prophet (Deuteronomy 18:20-22).
The Adventist Church’s typical defense to this is to say the prophecies that failed were all conditional and the conditions were never met, thus they weren’t failed prophecies. Those mentioned above do not fit this bill which is why we have chosen those out of many.