i can't connect to vm instance because ssh keys are expired and can't use another one

[mina_yousry_iti]

I have a gcloud vm instance which run on RHEL9 and i am connecting to it from my local pc which run on windows 10
I was connecting to the vm instance through ssh connection for 1 month till 3 day ago, unfortunately i can't connect to it ssh from my pc although i still
open ssh window linked to the vm instance but i can't connect to the vm instance from my local pc
I tried to investigate the issue by checking the firewall and update the keys for 3 days but nothing worked until

I want to get rid of all ssh keys and create new one which will be the only one and not to be overwritten by expired ones

i noticed that the ssh keys linked
to the vm instance expired may be this is the reason
every time i create a new ssh key and update the vm instance with it,the old expired one is restored again blocking ssh connection

I checked the vm logs and found that there is ssh rejection happeb fron server side because of the expired ssh keys

I tried to update these keys for many times with different methods but nothing worked

I attached snapshot of the vm logs showing ssh rejection because of expired ssh keys