[Gelöst] Malicious files detected in the download

Background of the issue:
I am trying to address an issue where the content downloaded from WPML is infected with malicious code. This is affecting our production site. The specific file in question is icmwp-contentlanguageslanguageswpmlelementor-29320-id_ID.l10n.php. The issue can be seen on the page: versteckter Link.

Symptoms:
Malicious files detected in the download from WPML, specifically affecting the production site.

Questions:
How can I resolve the issue of malicious code in the downloaded content from WPML?
What steps should I take to ensure the security of my production site?