Troubleshooting Error in Lindy: Issues with PDF Attachments from Outlook

I've created a Lindy that grabs an attachment from an incoming email (Outlook) and creates a record in Airtable by placing the attachment in a field. Sometimes I receive an error like the one attached, however I can't figure out why. The incoming attachments are always a PDF document. There appears to be no rhyme or reason as to when I receive this error. Any ideas?