Background of the issue:
I translated my website into 4 languages using WPML. One language is displaying correctly, but the others are showing a 404 error page. I modified the permalinks, and now some languages that were working are also showing a 404 error, while others that weren’t working have started to work.
Symptoms:
404 error page appears for some languages after translating the website.
Questions:
Why are some languages showing a 404 error after translation?
How can I fix the 404 error for the translated pages?
1.- Contact your hosting providers and ask them to downgrade the PHP version to v8.1
2.- Please increase the WP memory Limit. Minimum requirements are 128Mb: https://wpml.org/home/minimum-requirements/
You can add this to wp-config.php to increase WP memory:`
I didn't ask to increase the host memory limit, but the WordPress memory limit by following the steps I described. The PHP memory limit is different than the WordPress memory limit.
Also, did the PHP version was downgraded?
If the issue persists after increasing the WordPress memory limit, I kindly ask you to share the access credentials to the site in the next message that I have set private.
Please confirm you created a full site backup before sharing the credentials.