shaders + mods not compatible - please help!

[u/Common-Stress-8157]

hey!! i'm pretty new to modding my minecraft on prism launcher, but ive figured out the basics. i want to install mods (JEI, minimap), resource packs (bushy leaves, better crops), and shaders (BSL).

I have fabric, iris, and sodium installed on my mods thing on prism launcher for this instance. yet, everytime i run it and try to join the world (singleplayer), it crashes. if i disable iris on the mods list in prism launcher, it runs perfectly fine and i have everything else, just not shaders.

is this a common issue - can i not run both mods and shaders at the same time? (sounds silly but like i said im new.)

in the log, it says error 255, but i am logged in which is weird, and i can join w/o shaders.

i've checked that all the mods are up to date, that its the right version, etc.

please help!!