Hello, hoping someone can shed some light on this error while updating from version 3 to 4

Thanks in advance

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Upgrade from Version 3.1.4 to current Version.

PHP 8.0/MYSQL8.0

Windows 2022/IIS install

Unfortunately, we no longer provide support for 3.4, including upgrades. If you take a look at the following location, there are providers who do provide this as a service, which you can find here

https://invisioncommunity.com/third-party/providers/?csrfKey=7568ff7564506961db68f5f5e0cae392&advanced_search_submitted=1&sortby=primary_id_field&sortdirection=asc&content_field_124[1]=9

It is also worth noting here, we do not support the software running on IIS.