Oracle cloud customers experience a issue with IP address. I will attach their announcement.

Oracle Cloud Infrastructure Customer,

We have identified an issue affecting a subset of customers who have become unable to access their Oracle Cloud Infrastructure resources. Customer Impact: Some customers with Free Tier accounts, using Ephemeral or Reserved Public IPs will be unable to access their resources due to the unintentional reclamation of the IPs associated with their Virtual Machines. While we have taken steps to ensure no further impact occurs, any affected Public IPs will need to be re-established by reassigning a new Public IP through the Oracle Cloud Infrastructure Console, REST API, SDK CLI or other tools, as described in the following documentation: https://docs.oracle.com/en-us/iaas/Content/Network/Tasks/managingpublicIPs.htm If a preferred public IP is configured, the public IP assignment may still be reassigned subject to its availability.