Rag model examples - When uploading a sample ".pdf" file its producing an exception.

After using the playground for quite sometime, I shifted from one example to other example of RAG models. Later when I uploaded the same pdf into the knowledge base, its giving an exception. While the same file was working properly till then. Then I tried with different files all formats like ".txt", and ".md" each of these too failed with same exception as provided below.

Attached the sample file uploaded during testing.uploaded_Software Engineer Resume.pdf

Reproduisez l’échec dans le playground en basculant entre les exemples de modèles RAG et en téléversant le PDF joint, puis essayez les fichiers .txt et .md signalés. Commencez par l’exception affichée dans l’issue et confirmez que les téléversements vers la base de connaissances se terminent correctement pour chaque format.