Error on Replication Transactions vault

Hi to all,

I have configured a cloud replication vault in addition to the Default vault hosted on a local server.

However, I am getting the following error in the Replication Transactions:

Error processing replication transaction for file with ID=7C78086233CC4E239A66960DDDD59AF0: SendRequestToVaultServer: The remote server returned an error: (404) Not Found.

For reference:

• I have opened port 443 bidirectionally between the Application Server and the Vault Server.
• I have correctly configured the replication.config file on the Application Server.
• The InnovatorServerUrl value in the vault.config file is correct.
• The certificates are valid and correctly configured.

What could be causing this issue?