[help] Cant make code base indexing work

Hey,
using open API and local quadrant
when i start indexing i see the "yellow dot", but nothing happens (no progress)
then i see the "green dot", but no open API usage, no data saves in quad (new collection is created)
and when i try to use i get the following error
Error codebase_search:
Failed to create embeddings: batch processing error

any ideas? thanks!