Hi Virginie,
I am hitting this error when trying to export that profile type:

Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 32 bytes) in .../administrator/components/com_easysocial/models/users.php on line 203

This is probably because the amount of users is too huge(8k+).
Can you try increasing your server's memory_limit temporarily and see if you are able to export it? You can revert back the memory_limit to the previous value once you are finish with the exporting process.

Hi,

I can't change this parameter
By default memory_limit = 128M

Do you mean your webhosting is not allow to increase the PHP memory_limit from your server?

By the way, may i know do you have any local site from your side?

Hi,

My webhosting can't increase that.

And I can have a local site but I'm not the webmaster and the webmaster works only on line.

Hello Virginie,

There is only so much we can do on our end as the list is pretty huge (67,071 users)

If your hosting wouldn't allow you to increase the memory_limit, then I would suggest that you take a backup of your site and restore it on your local computer. Then run the export on your local computer.