Sir/Madam, My visa will going to expire this 6th...

We would like to inform you that it is expected that a decision will be issued by the Immigration Authority to exempt violators of the residence law if the non-departure is due to the suspension of international flights at the present time as this is a force majeure, you can contact the Immigration Service about this
the duration of renewing passport before its expiration is differ according to the country, as it could be 6 or 9 months.
So you have to review your country embassy to find out if you can renew the passport before its expiration or not and check the allowed duration and there could be exceptions if you have strong reasons to renew.