max-nlb-flexible-count shows usage 1 without existing network loadbalancer - Free Tier

Summary:

In the limits dashboard it shows that I've one Network Load Balancer used while I have no Network Load Balancer created on the Oracle Cloud interface.

Content (required):

Hello,

I'm using a free tier Oracle Cloud.

I can't create a new Network Load balancer because I'm getting this error: "The following service limits were exceeded: max-nlb-flexible-count."

The issue is that I've no Network Load balancer created on my account, I can't see any on the web interface nor on the command line.

Is it possible to help me in order to fix the limits of my account?

Thank you in advance for your help.