VPS password and rescue reboot "side effects"

Hello everyone,

And I use the offer: VPS Comfort

I encounter the following problem / I would like to set up: We no longer have the root password. I noticed we can reboot the server in "rescue mode" but we have several marketing campain websites running on the VPS. Does the reboot to recover a new password will have an effect on published websites please ?

Thank you,
Paul