Hi Abira,
No, that should not affect your Application users from logging in because they will be logging-in in an Environment (Development, Test, Production) and each environment has its database and their own application users there.
It would affect your users if that environment and LifeTime shared the same database which is a bad principle and it's automatically segregated if your infrastructure runs on OutSystems Cloud.
Nonetheless, you want naturally to solve your problem of LifeTime database as soon as possible.
Regards,
João