I'm getting the same issue. Judging by the error message it seemed to be whenever Marin had a voiceline. If you keep clicking ignore you can still see the still images/animations but it will continue to error for each screen that Marin would have dialogue.
Edit: It appears the bug is fixed in v0.98 according to the patch notes
I really enjoy this game and would consider subscribing to the Patreon if it's still being worked on but the fact that 0.6 has been out for over 2 years on Itch.io and I can't see anywhere on Patreon or the website if 0.7 is out or even close to finished makes me a bit hesitant. I've finished all the content in 0.6 and really hungry for more!
