This thread is resolved. Here is a description of the problem and solution.
Problem:
After activating the WPML core plugin, the setup wizard did not appear, preventing the client from configuring the plugin and translating pages. The client also noted the absence of the WPML menu in the WordPress Admin.
Solution:
We recommend checking for compatibility issues between WPML and other active plugins or themes. Here are the steps to follow:
1. Create a full website backup.
2. Deactivate all other plugins to see if the issue persists.
3. If the issue is resolved, reactivate the plugins one by one to identify the problematic plugin.
4. If the issue still occurs with all non-WPML plugins deactivated, switch to a default WordPress theme like TwentySeventeen and check again.
It is advisable to perform these steps in a staging environment if possible.
If these steps do not resolve the issue or if the solution seems outdated or irrelevant to your case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If the problem persists, please open a new support ticket at WPML support forum.
This is the technical support forum for WPML - the multilingual WordPress plugin.
Everyone can read, but only WPML clients can post here. WPML team is replying on the forum 6 days per week, 22 hours per day.