Redirection to install.php

Hi !

i just changed the prefix successfully. the site work, the admin work.

But when I Did that, i was redirect to the install.php page… which don’t say that there is an already existing wordpress site.

what must I do ?

Fill the form and nothing will happend ?
or leave it as it is ? but is this a security problem ?

thanks for the answer ??

https://www.ads-software.com/plugins/db-prefix-change/