Hello dsiegfried,
This ticket has been open for quite some time.
Do you have any new info / feedback?
Can you please check if this issue still exists in the latest version of LimeSurvey and let us know?
Thank you!

I have the same (or similar) problem:
I get the following when trying to export participants:

This site can’t be reached
The webpage at https://limesurvey.xxxx.org/index.php?r=admin/tokens/sa/exportdialog/surveyid/244477
might be temporarily down or it may have moved permanently to a new web address.
ERR_INVALID_RESPONSE

Visually participants can be seen using the "Display participants" button
This is using Limesurvey 5.6

Will try to reproduce.

The reason of the error commented by the reporte should be fixed by now.
https://github.com/LimeSurvey/LimeSurvey/blob/5.x/application/helpers/export_helper.php#L175

Still @cvvcvergara can you please set debug to 2 and try again to see if you get more details of the error?

We have tried reproducing the issue not with much luck.

Can you provide more details to reproduce?
Maybe add a sample survey and responses (LSA)?

What's the minor version you have installed? 5.6.xxx?

Version: Version 5.6.14+230403
Test survey, go to survey participants:
Display participants work well.
Export, Shows the form, where "Download csv" button, which fails with that message.

About setting debug to 2, I will figure it out, I am not the admin (yet)

Screenshot from 2023-06-16 10-53-38.png (25,415 bytes)   

Screenshot from 2023-06-16 10-53-38.png (25,415 bytes)   

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image-2.png (38,493 bytes)   

image-2.png (38,493 bytes)   

But that is not SPSS export... is it?

Don't know, its csv.
maybe I am in the wrong issue.

I can't reproduce the issue either.
Please, can you open a new ticket and attach a sample LSA faiing?
Also, please, let's try to set the debug to 2. That will give more information.

Thanks

As per the comments, will be closing the ticket.
Please add any comments in case it should be reopened.
Thanks