Fix invalid

packages/server/src/utilities/schema.ts

@@ -96,6 +96,7 @@ export function validate(
         return
       } else if (
         [FieldType.STRING].includes(columnType) &&
+        !columnData &&
         helpers.schema.isRequired(constraints)
       ) {
         results.schemaValidation[columnName] = false
@@ -215,6 +216,7 @@ function isValidBBReference(
   subtype: BBReferenceFieldSubType,
   isRequired: boolean
 ): boolean {
+  try {
     if (type === FieldType.BB_REFERENCE_SINGLE) {
       if (!data) {
         return !isRequired
@@ -239,6 +241,9 @@ function isValidBBReference(
       default:
         throw utils.unreachable(subtype)
     }
+  } catch {
+    return false
+  }
 }
 
 function parseJsonExport<T>(value: any) {