Issue after upgrading v1 to v2 and article source

Hi,
We have upgrade to 2.5.2 from a v1 version.
We use the Article source, Joomla 3.10.12 php7.4. No override.
We get this error : 0 - Class 'Joomla\Component\Content\Site\Helper\RouteHelper' not found
Of course no more error if we select the manual slide for example.

Thanks

Hi
Please try the 2.4.2 version and tell me if it works
[removed]

because you are still on Joomla 3 ... you should update your website
CEd

Thanks it's working.
I have tried to read the requirement somewhere and though the installation process will prevent a v4 version to be installed.
Yes this website must be upgraded when I m' not the personn who decide/pay

Thanks for your help.

ok great
in fact I have updated the files to be Joomla 5 compliant, and also J3 compatible but it seems that some code is no more compatible J3, and I will not revert the changes. For now you must keep this version until you update your website

PS : as you suggest, in my other extensions I have blocked the J3 installation

yeah I just see that for Menuck ^^