Hi,
Oh Flex again :/
In general, please contact with Flex (Apikko developer) your template has overriden also SP Simple Portfolio component/module. On your error it looks like OLD code, our new module has a different name.

Module that you are using (SP Portfolio), is from 2013 (!): modules/mod_sp_portfolio/mod_sp_portfolio.xml We don't use it anymore, it was created for Joomla 2.5 only, also worked in J3.x. Is not Joomla 4.x ready, and won't be!
From us, current is SP Simple Portfolio Component & Module - but as I mention above it was overriden by Flex. So use it instead of old one. And uninstall old module.

