That's an error happening in the development branch of Q2A 1.9 when using PHP 8. I've provided a fix for that here: https://github.com/q2a/question2answer/pull/911
My advice: don't use the dev branch. Use the master branch, instead. Or download Q2A from the official release link: https://github.com/q2a/question2answer/releases/download/v1.8.6/question2answer-1.8.6.zip |