Problem in RAG em React + TypeScript

Hello, good morning.
I am an AI CODE tool enthusiast and I am implementing a Multi LLM, Multi RAG system in LovaBle. The Multi LLM part is working well, recently I tried to implement a RAG system, and I encountered problems. After uploading the PDF file, the system generates the chunks and processes them to send the data to the Supabase vector database, the browser console returns the errors as shown in the attached image.

![{495187E1-9877-4FC4-AE83-3CA16FFC9AE3}](
![{86C32E72-A45A-4D6D-826E-1F1DA2A1E5E7}](
![{391507FD-E8CC-41D2-88D6-BC188004D461}](
![{81681305-D855-4C27-B1D8-505A648D397E}](

The system generated chunks with special characters (dirty data). I imagine that could be it, but I really don't know.

Can someone help me?

Anderson Silva Dorneles
From Brazil