Issues Generating Representing Entities

Hello, the company I work for has recently (as of last week) begun experiencing issues with the 'Generate Representing Entities' button that they never had before. Before it worked totally fine, they would click the button, and a new customer and vendor would be created that would be representing all but ELIM legal entities.

Now when it is pressed, it says the 'Create Vendor' operation fails citing error message

{"type":"error.SuiteScriptError","name":"INVALID_FLD_VALUE","message":"You have entered an Invalid Field Value 109 for the following field: subsidiary","id":"","stack":["Error\n at RecordInvoker.save (suitescript/resources/javascript/record/serverRecordService.js:391:13)\n at NetSuiteObject.thenableFunction() (suitescript/resources/javascript/record/proxy.js:115:24)\n at Object.afterSubmit (/SuiteScripts/SV.UE.addsubstovendor.js:61:39)"],"cause":{"type":"internal error","code":"INVALID_FLD_VALUE","details":"You have entered an Invalid Field Value 109 for the following field: subsidiary","userEvent":null,"stackTrace":["Error\n at RecordInvoker.save (suitescript/resources/javascript/record/serverRecordService.js:391:13)\n at NetSuiteObject.thenableFunction() (suitescript/resources/javascript/record/proxy.js:115:24)\n at Object.afterSubmit (/SuiteScripts/SV.UE.addsubstovendor.js:61:39)"],"notifyOff":false},"notifyOff":false,"userFacing":true}