Hello I am using acymailing 6 on my customers sitel and recently reported a problem with newsletter form.
When the user submits his/her newsletter he get a response of Ajax Error.
By checking the nginx server log I see:

2023/07/06 15:59:55 [error] 13494#13494: *228 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 79.129.63.234, server: www.zappeion.gr, request: "POST /el/component/acym/?ctrl=frontusers&tmpl=component HTTP/2.0", upstream: "fastcgi://unix:/run/php/php7.2-fpm-zappeion.sock", host: "www.zappeion.gr", referrer: "https://www.zappeion.gr/el/"

I am using Joomla 3.8

I am sorry, but we really can't provide support for AcyMailing 6, when we are on AcyMailing 8.x now

Please update your AcyMailing to the latest version and see if that will help

    To be honest, I have no idea 🤔

    That version of Joomla is almost 5 years old and to find out the answer, you should create a cloned copy of the site and test this on your own

    Hello, I have updated to joomla 3.10 and php7.4. I uninstalled old versoin 6 from acymailing but whe nI try to install version 8 I get the error:
    "Unknown column 'parent_id' in 'where clause'"

    To provide you with the best assistance possible, I kindly request that you submit a support ticket through our website at https://www.acymailing/support/. Our team will be able to efficiently and effectively provide you with the assistance you need.

    Please note that our ticket support is exclusively available for our customers with an active Essential or Enterprise license. If your license has expired or you are using the Starter version, we kindly invite you to renew or upgrade your license prior to opening your support ticket.

    I am not having an active subscription.
    Can anyone from the forum help me?