We apologize for the issues experienced earlier today with render engine V7. Due to its reliance on Google Gemini, and the outages that occurred with Google Gemini, users were limited in their rendering capabilities. Users could only render videos, or render images with earlier engine versions like V6S, which do not rely on Google Gemini.
This issue has now been resolved, and rendering with V7 engine is possible again. Check back here for any further updates or developments on that situation.