AI Auto Summarise Issue

We have tried AI auto summarise and it is totally working fine with image but when we tried with google document, pdf and slides it is throwing an error with 500 code.

Error

{ [Exception: Request failed for https://generativelanguage.googleapis.com/ returned code 500. Truncated server response: {
"error": {
"code": 500,
"message": "An internal error has occurred. Please retry or report in https://developers.generativeai.google/gu... (use muteHttpExceptions option to examine full response)] name: 'Exception' }