As the message says, pixify is trying to use translations before other plugins have started.
Is this actually causing a problem? Of so, upgrading to 2.6.12 won’t help. My plugin cannot do its job if it hasn’t been allowed to start.
If translations were “working before” then it’s possible that Loco Translate is actually loaded (by luck) but another component isn’t. It’s extremely complex, and proper debugging is the only way to attribute cause.
This problem has always existed, but suddenly you are alerted to it. I’ll be writing a FAQ about this today, because it affects a huge number of people, and there’s a lot of confusion around the topic. In the mean time, see the WordPress announcement of this new feature.
Thanks, Tim!
I’ll look into it a bit more and update here with any findings.
I’ve posted a FAQ about this: https://localise.biz/wordpress/plugin/faqs/early-domain-loading
I’m marking this topic as resolved because the notice you’ve reported doesn’t stem from my plugin. If you have any details to share that seem relevant to something fixable in Loco Translate, then feel free to reopen with those details.