i upgraded from 7.4 to 8.1 running 3.0.2
all pages blank it does not render anything even simple text page with no template, backoffice works fine
only error I get is
[2022-12-02 14:16:44] (ERROR @ /XXXX/core/vendor/xpdo/xpdo/src/xPDO/xPDO.php : 666) Could not load class: modFileHandler from modfilehandler
anyone got an idea? I tried to reinstall 3.0.2 twice but same issue