No item exists error

Certain user gets an error like the following whenever trying to view a List Item through a Plumsail display form. Other users are able to open the display form just fine. Not sure if this is a permission issue or not. The list and form are on SharePoint Online.
{
“odata.error”: {
“code”: “-2146232832, Microsoft.SharePoint.SPException”,
“message”: {
“lang”: “en-US”,
“value”: “No item exists at https://sharepoint_url/sites/Forms/_api/web/getList(’/sites/Forms/Lists/New Form’)/renderlistformdata(itemid=18,formid=‘display’,mode=‘1’). It may have been deleted or renamed by another user.”
}
}
}
Any ideas what might be causing this error?

Dear Cameron,

Have you any custom routing on this form?

image

No I don’t have any custom routing now. I believe I did when I was getting the error. I do have another form set though.

Also it appeared to be a permission error. For some reason I didn’t have read access to the item. I think that is why it was throwing no item exists error.