SPANISH
hola al crear una cuenta, se llenan todos los campos para el registro y cuando ya le doy registrar la pagina carga y queda en blanco y me genera el siguiente error en el registro

2024-04-01 23:46:10 - Unknown Error: AbanteCart core v.1.3.4 Call to undefined function Symfony\Component\Mailer\Transport\Smtp\Stream\proc_open() in <b>/home/electron/public_html/vendor/symfony/mailer/Transport/Smtp/Stream/ProcessStream.php</b> on line <b>41</b>

mire el archivo y veo todo bien. lo reemplaze nuevamente por el original a ver si habia algun error y sigue persistiendo.
alguien me puede colaborar con este error.

aclaro que la cuenta si se registra, pero por supuesto que la persona que se registra no sabe si se creo o no, ya que no genera la web donde realmente creo la cuenta . ayudenme gracias.

ENGLISH
Hello, when creating an account, all the fields for registration are filled out and when I click to register, the page loads and remains blank and generates the following error in the registration

2024-04-01 23:46:10 - Unknown Error: AbanteCart core v.1.3.4 Call to undefined function Symfony\Component\Mailer\Transport\Smtp\Stream\proc_open() in <b>/home/electron/public_html /vendor/symfony/mailer/Transport/Smtp/Stream/ProcessStream.php</b> on line <b>41</b>

I look at the file and I see everything fine. I replaced it again with the original to see if there was any error and it still persists.
Can someone help me with this error.

I clarify that the account is registered, but of course the person who registers does not know if it was created or not, since it does not generate the website where the account was actually created. help me thanks.

I have a store that was way back on 1.1.9. I upgraded to 1.2.1 through the admin panel but then it didn't give me any notifications to go further. So I tried entering in abantecart_upgrade_122 and get an error. I read that you have to hit each version all the way up, but kept getting an error so I tried abantecart_upgrade_134 and get this error:
 Error: Can't upgrade package. Newer package version is already installed.

The version showing at the bottom is 1.2.1 so I don't get this. So I thought I would try to follow the instructions for the manual upgrade but the package I downloaded "abantecart_1.3.4_upgrade_only" does not have the upgrade.sql file in it and I can't find anywhere to download it. How do I get this file?

I wish the auto upgrade would work. Please advise how to get up to 1.3.4. I need to update my PHP version to 8.0 on the server.

update-alternatives did not let me do 8.1, as it wasn't available on the system. 8.2 was, though. Seemed to work alright.

Hello. It might work but not stable. In some cases, it may fail.

Thank you. I'll update-alternatives to the recommended version, 8.1.

I'm running an Ubuntu Server 22.04.4 LTS on my Linode. Had some Apache on it, and apt update brought PHP up to 8.3.4. Is this going to be ok for running AbanteCart 1.3.4? I'm confused because the requirements at https://abantecart.atlassian.net/wiki/spaces/AD/pages/3768390/AbanteCart+System+Requirements show No for PHP 8.3 or greater.