[BUG] invalid byte sequence for encoding "UTF8"

[sbakir]

Description

After uploading over 2 GB, and 400 pdf files, embedding start to fail as below:
"[ERROR] Failed to embed.
{'S': 'ERROR', 'V': 'ERROR', 'C': '22021', 'M': 'invalid byte sequence for encoding "UTF8": 0x00', 'W': 'unnamed portal parameter $3', 'F': 'mbutils.c', 'L': '1679', 'R': 'report_invalid_encoding'}"

To Reproduce

Create a chatbot with large knowledge base over 2 GB, and over 400 different pdf, word, presentation files and start embedding. After a while, it gives the "Failed to embed" error.

[statefb]

Possible cause and solution:
https://www.cybertec-postgresql.com/en/fix-bad-encoding-postgresql/