Hi, there seem to be a few of these issues, so i’m just adding that i am also getting the same error showing in the site – Fatal error: Can’t use function return value in write context in mysite/wp-content/plugins/event-tickets-plus/src/Tribe/Commerce/WooCommerce/Orders/Cancelled.php on line 51
We’ve just release a maintenance release that addresses this issue. Please look for updates to your Events plugin(s) on your site. Thank you for your patience while we worked to address the reported issues. And don’t forget to review the release notes for all the details on version 4.0.3.
While our testing shows that the new release fixes the problem reported here, sites are different and it’s possible that there are edge cases. If you are still seeing the issue after you update your plugins, please post a new thread so we can look into it further.