Getting Mirror Column Values

Good day,

Since last night I have been having issues with getting mirror column values using
… on MirrorValue {
** display_value**
** }**

I getting an internal server error(500)

Here is the query:
query ($item_id: [ID!]) {
** items (ids: $item_id) {**
** name**
** column_values {**
** column {**
** title**
** }**
** text**
** value**
** }**
** parent_item {**
** id**
** column_values {**
** column {**
** title**
** }**
** … on MirrorValue {**
** display_value**
** }**
** }**
** }**
** }**
** }**

Never had this issue before

Also this query doesn’t seem to work anymore getting an internal server error:
{
** items(ids: 123456789) {**
** column_values {**
** … on MirrorValue{**
** display_value**
** }**
** }**
** }**
}