1. Under the V-Ray parameter panel - V-Ray::Frame buffer column, checking “Render to V-Ray raw image file” does not affect the rendering, however, if the output path and format is not set, it might result in output error.
2. Click “Browse” and set the output path and format, save the file and resubmit the job.
3. Alternatively, you can uncheck “Render to V-ray raw image file”, save the file and resubmit the job.