Settings are not saving while throwing this error in console

Hi,

My friend I am having tough time to save settings on my client's website kindly give it a check and let me know if its fine to move on now ?
Here is the error console
could not paste image here but here it is in text:
An invalid form control with name='text_brz478auvz6_8a98lwrtkex' is not focusable.
/wp-admin/edit.php?post_type=classifier&page=classifier#tab-create:1 An invalid form control with name='text_brz478auvz6' is not focusable.
/wp-admin/edit.php?post_type=classifier&page=classifier#tab-create:1 An invalid form control with name='select_gbjjf1ep2qt' is not focusable.
/wp-admin/edit.php?post_type=classifier&page=classifier#tab-create:1 An invalid form control with name='select_5n24vrpqwo4' is not focusable.
/wp-admin/edit.php?post_type=classifier&page=classifier#tab-create:1 An invalid form control with name='text_ladd3pz7foq' is not focusable.
/wp-admin/edit.php?post_type=classifier&page=classifier#tab-create:1 An invalid form control with name='select_ypgaaxe436s[]' is not focusable.
/wp-admin/edit.php?post_type=classifier&page=classifier#tab-create:1 An invalid form control with name='text_u0g4iif4hu' is not focusable.
/wp-admin/edit.php?post_type=classifier&page=classifier#tab-create:1 An invalid form control with name='text_4c0mcusr1ak' is not focusable.
/wp-admin/edit.php?post_type=classifier&page=classifier#tab-create:1 An invalid form control with name='select_t4jcpg8gezb' is not focusable.
/wp-admin/edit.php?post_type=classifier&page=classifier#tab-create:1 An invalid form control with name='textarea_1k01cdahl9z' is not focusable.

Kindly make sure it can be done today as its weekend ahead.

Waiting badly for the response.

Thank You