Disable stats ping when servers are offline

What does this MR do and why?

• There was a previous MR that did this, but neglected to disable the player cache when servers were off. This MR will turn off the players cache when servers are off.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• Have you checked this doesn't interfere/conflict/duplicate someone elses work?
• Have you fully tested your changes?
• Have you resolved any lint issues?
• Have you assigned a reviewer?
• Have you applied correct labels?