WHMCS Module Functional Errors
From AutoVM WIKI
IP List is not shown while editing virtual server in WHMCS in order to add client's virtual servers. verify information in modules while editing products.
- serverid must be numeric. every server has a unique ID to use as serverid.
- datastoreid must be numeric. every datastore has a unique ID to use as datastoreid.
- you can only select one option : pick a plan or customize. keep in mind that you can only pick one of them. e.g: do not customize RAM when you had choose a plan.
- vpsid & password fields must be filled when adding products/services.