Unable to add instance if instance has "null" image source

[kulcris]

Information [REQUIRED]

Which Server Type?

Satisfactory

Which Platform?

AMP

Describe the bug

"DisplayImageSource" was set to NULL (im assuming caused by an error when server this particular instance was set up Manually setting the image allowed the instance to be added to this script "DisplayImageSource": "steam:526870",

---

Additional Information [NOT REQUIRED]

To Reproduce

Steps to reproduce the behavior:

1. Set image for an instance to NULL for an instance when initially setting up this script (in instances.json)

Expected behavior or Desired behavior

use placeholder image if image is missing

Additional context

Im assuming there was an error when I created the satisfactory instance months ago. This resulted in no image for that instance

Exception in thread AMP Handler:
Traceback (most recent call last):
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.12_3.12.2544.0_x64__qbz5n2kfra8p0\Lib\threading.py", line 1075, in _bootstrap_inner
    self.run()
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.12_3.12.2544.0_x64__qbz5n2kfra8p0\Lib\threading.py", line 1012, in run
    self._target(*self._args, **self._kwargs)
  File "E:\AMPDataStore\Instances\GatekeeperV2Bot01\gatekeeperv2\GatekeeperV2-main\AMP_Handler.py", line 44, in AMP_init
    handler.setup_AMPInstances()
  File "E:\AMPDataStore\Instances\GatekeeperV2Bot01\gatekeeperv2\GatekeeperV2-main\AMP_Handler.py", line 92, in setup_AMPInstances
    self._instanceValidation(AMP=self.AMP, startup=True)
  File "E:\AMPDataStore\Instances\GatekeeperV2Bot01\gatekeeperv2\GatekeeperV2-main\AMP_Handler.py", line 215, in _instanceValidation
    flag_reg = re.search("(gatekeeper)", amp_instance['DisplayImageSource'].lower())