A 15 year old girl unfortunately got into an online relationship with a boy of 22 years.

Question

A 15 year old girl unfortunately got into an online relationship with a boy of 22 years. The day she turned 18, an online Nikah was performed. The parents remained unaware of this situation until this whole process was done. I requested the girl to write how this ceremony was performed. This is mentioned below: 'I am 18 years old and I did an online nikah with a man who lives in Pakistan. I had no witnesses and no one from my side with me. I was alone in the room whilst the online nikah was happening. On his side there were 2 moulanas, a lawyer, his dad and a few more witnesses. He told me one of the moulanas will represent me as my wali, and the lawyer will be my witness. The moulana first read the names and confirmed that it was our names and confirmed the mehr amount and then he started the nikah. I said I accept 3 times and so did he. He then did the nikah khutbah and dua and that was it.' Looking at the above will the Nikah be considered valid?