Background of the issue:
I am working on a fresh WordPress local installation with no other plugins activated except WPML. The default TwentyTwentyFive theme is installed and active. After completing the initial WPML configuration procedure, I encountered several warning messages.
Symptoms:
Warning messages related to 'Undefined array key "data"' and 'Trying to access array offset on null' in various files within the WPML plugin directory. Additionally, there are warnings about 'Cannot modify header information - headers already sent'.
Questions:
How can I resolve the warning messages related to 'Undefined array key "data"'?
What steps should I take to fix the 'Cannot modify header information' warnings?
The topic ‘[Closed] Warning messages “Undefined array key “data” referred to “[…]\sitepress-multilingual-cms\ven…’ is closed to new replies.
