She got married in the mosque without her parents’ knowledge

No File Exists
Check below answers in case you are looking for other related questions:
Conditions of walee (guardian)
She got married without a walee and her husband refuses to repeat the marriage contract

No File Exists
Related Answers:
She loves him and he treats her orphaned daughter kindly, but their families refuse to let them marry
She was a Raafidi, then Allah blessed her with guidance but her family will not let her marry a Sunni man
Ruling on marrying young women
Conditions of walee (guardian)
She got married without a walee and her husband refuses to repeat the marriage contract

Recommended answers for you:
Etiquette of naming children
Hitting one’s wife?
Reducing the mahr is the Sunnah
What should be avoided by the one who wants to offer a sacrifice
Praying for the newborn to be righteous in various ways