500 error on some PDF

Hi!

We use PDF Services Node.js SDK for convert PDF files.

On some files we see 500 error

"description = Error occurred while processing the request; transactionId=df33627c-e6ac-4ddf-bcfb-e9cec33ee035; requestTrackingId = df33627c-e6ac-4ddf-bcfb-e9cec33ee035; statusCode = 500; errorCode = INTERNAL_SERVER_ERROR
at node_modules\@adobe\pdfservices-node-sdk\src\internal\api\platform-api.js:197:12
at processTicksAndRejections (node:internal/process/task_queues:96:5)"

It's not on all files