on all pages, the Export function does not work

[nathcast]

The tables work on the development place.
I have tried with new composer.

The last update showed me the error codes instead of the 500 I was getting - so some progress.

Now I found this from PHPOffice/PhpSpreadsheet#3615 (comment)

had the same problem with Codeigniter on Ubuntu server.
I solved this way.
I removed Spreadsheet with Composer.
I cleared the cache with Composer.
I deleted all the vendor folder.
I installed Spreadsheet with composer.
I uploaded all new vendor folder.
it worked.

Php 8.2 CI 4.3.5

more clue in PHPOffice/PhpSpreadsheet#3758

It is to do with

So something to try!