PLEASE HELP 30 POINTS ASAP! Gideon has prepared the following two-column proof below. He is given that ∠OLN ≅ ∠LNO and he is trying to prove that ΔOLE ≅ ΔONE. (picture attached)

Step Statement Reason
1 ∠OLN ≅ ∠LNO Given
2 Draw OE as a perpendicular bisector to LN by Construction
3 m∠LEO = 90° Definition of a Perpendicular Bisector
4 m∠NEO = 90° Definition of a Perpendicular Bisector
5 LE ≅ EN Definition of a Perpendicular Bisector
6 ∠LEO ≅ ∠NEO Substitution Property of Equality
7 ΔOLE ≅ ΔONE Angle-Side-Angle (ASA) Postulate
He made an error in the proof. Identify and correct the error. (I think its step 6 but Im not sure if it is and why it is. Please help!!)