GREG-138: Adding error message if ous or role types cannot be loaded

frontend/public/locales/en/common.json

@@ -154,10 +154,11 @@
     "error": "Error",
     "invitationCreationFailedHeader": "Failed to create invite",
     "errorStatusCode": "Status code: {{statusCode}} (<3>{{statusText}}</3>)",
-    "genericServerErrorBody": "The server reported:<1>{{errorBodyText}}</1>",
+    "genericServerErrorBody": "Message:<1>{{errorBodyText}}</1>",
     "contactHelp": "Contact help through the link in the footer if the problem persists.",
+    "errorLoadOusRoleTypeHeading": "Error loading form data",
+    "errorLoadOusRoleType": "Could not load organizational units and/or role type from server",
     "unknown": "An unknown error has occurred. If the problem persists, contact support.",
-    "contactHelp": "Contact help through the link in the footer if the problem persists.",
     "invitationDataFetchFailed": "Failed to fetch invitation data",
     "guestRegistrationFailed": "Failed to register your data",
     "codes": {