Use SAP Note Search in Support Portal -> Help & Support -> Search for SAP Notes & KBAs.
Search Term: CRM_SVY_GENERATE_BSP_TEMPLATE
Application Area: CRM-BF-SVY
Leave everything else as default.
Sort by Date by clicking “Released On” twice.
Open the newest SAP Note by clicking on the short text, and follow instructions described in the note to implement the newest version of survey generation template.