Failed to create SolusIO VPS via WHMCS: The selected limit group id does not exists

Symptoms

• Failed to create SolusIO VPS via WHMCS 8 provisioning module:

  SVM_ERROR: Order Accept Encountered Problems
  Failed to place new order, something went wrong

• In WHMCS module log at WHMCS > Settings (the wrench icon in the top right corner of the panel) > System Logs > Module Logs the following error is generated for failed request:

  CONFIG_TEXT: {"message":"The given data was invalid.","errors":{"limit_group_id":["The selected limit group id does not exists."]}}

  

Cause

There is no Limit Group configured in SolusIO > Access > Limit Groups:

Resolution

1. Log in to the WHMCS admin panel.
2. Navigate to Product/Services > edit_product > Module Settings.
3. Set Default Limit Group as None: