Hi @r0xta
I hope you’re well today and thank you for contacting us!
This is a warning only and shouldn’t affect site performance but of course it shouldn’t be there either.
It’s actually a bit “strange” that it happens – I checked the code around that line and all the variables used in it are (at least in theory) converted to arrays before this line is executed so it should prevent such warnings.
But it’s possible that there’s some “glitch” (in code or specific to the site).
Could you try temporarily disabling all cache on site/server and then resetting Asset Optimization in Hummingbird?
If it’s still happening after that, let me know, please:
– is Hummingbird on site up to date (version 3.3.2 currently)?
– is WordPress itself and other plugins/theme up to date?
– are you using any other JS/CSS optimization plugins on site at the same time (if yes, what are they)?
– what PHP version is powering your site?
Best regards,
Adam
