Status Page showing ??? values for fields
**Describe the bug**
What is the bug?

**To Reproduce**
Steps to reproduce the behavior:
1. Go to 'Status Page' while P2Pool and XMRig processes are Green/running.
2. See it.  Believe it.  Possibly accept it?  Noh.  Noh-noh-noh.
3. See error

Now, full disclosure:  I run UFW (Uncomplicated FireWall) and wonder if something is blocking the http API, but I'm a noob in that field as well ^_^

Also worth mentioning: the XMRig tab accepts the [h] command and shows the hashrate. So as far as I can tell, the system is indeed mining, just not being reflected on the Status page. Uninstalled Gupax 1.3.1 and restarted the configuration, sadly it reappears on my second install.

**Screenshots**
![1b_Gupax_Status_Error](https://github.com/hinto-janai/gupax/assets/141272582/6bd3ff1d-dd0b-458f-8044-d70fbca435e4)



**OS & Version:**
Debian 12 LTS (fresh install, fully updated) + Gupax 1.3.1