Problem: The client encountered a fatal error when trying to activate the OTGS Installer and WPML Multilingual CMS plugins, resulting in a class not found error. Additionally, when the WPML String Translation plugin was activated, the site experienced a critical error and could not load the Spanish homepage. Solution: 1. We recommended removing the OTGS installer. 2. We advised the client to create a full website backup. 3. We instructed the client to manually download the WPML Multilingual CMS plugin from the WPML downloads page, upload it to the website, and activate it. 4. If the issue persisted, we suggested performing a compatibility test by deactivating all non-WPML plugins and switching to a default theme to identify any conflicts. 5. We manually uploaded and extracted the WPML files to ensure no files were missing and asked the client to try activating the plugin again. 6. Since a new issue arose, we created a separate ticket to handle it, as per our support policy of one issue per ticket.
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