I cant do match, can you helpme please..

Actually, i change my domain of hosting server and redesign my site in wordpress.
My old urls was https://www.bneisholem.com.ar/123-my-book and today, this change to https://www.bneisholem.com.ar/producto/123-my-book.

I try to write a rule us:
(regular expression)
(www)?().(bneisholem).(com).(ar)\/[0-9]+[-].*
redirect to
/

but this not run.
Can you help me please?
Thank you
Berny