It crashes opon startup for no apparent reason.
Is there anything I can try?

Not unless you provide a crash report

crash-2023-01-15_22.52.12-client.txt

How did you end up on this repo? You have none of my projects installed. Your crash report is coming from jei.

whoops wrong crash report then
crash-2023-01-09_16.10.10-fml.txt
crash-2023-01-09_23.59.53-fml.txt
crash-2023-01-15_15.57.19-fml.txt
crash-2023-01-15_17.06.12-client.txt
crash-2023-01-15_17.45.15-fml.txt
crash-2023-01-15_22.50.00-fml.txt
crash-2023-01-15_22.52.12-client.txt
crash-2023-01-16_12.05.10-client.txt
Its one of these reports.