muhammad-nanaS

Problem:
The client is trying to activate the WPML plugin but encounters a fatal error due to an undefined function

str_contains()

. This issue typically occurs when using outdated versions of WordPress and PHP.

Solution:
1. Ensure that both WordPress and PHP are updated to the latest versions. WPML is designed to work with the most recent versions of WordPress and PHP, which can prevent such errors.
2. If you're using WordPress versions older than 5.9 and PHP versions older than 8.0, you might need to manually define the

str_contains()

function to resolve the error.
3. Before making any updates, we recommend performing a full website backup to safeguard your data.
4. If you prefer to use an older version of WPML, you can create a backup, remove the current WPML plugin, and install WPML version 4.6.7 from here.

If this solution doesn't look relevant to your situation, please open a new support ticket in the WPML support forum.