encountered error while loading new game with some mods. here's the error message: The mod Progressive Productivity (1.0.6) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event progressive-productivity::on_init()
progressive-productivity/utility/product_cache.lua:28: table index is nil
stack traceback:
progressive-productivity/utility/product_cache.lua:28: in function 'setupStorage'
progressive-productivity/control.lua:10: in function <progressive-productivity/control.lua:9>

Any chance you can upload a save that has this issue or if you know how I can reproduce it, that would also be awesome!

Mine is EXACTLY the same. please check my post.

i mean i removed the mod and added a different one already. what was happening it literally just crashes as starting new game, while in cutscene

If this issue is not resolved yet, please have a look at this discussion. You might want to follow it.
In short, I expect to have a version ready very soon that solves a lot of issues, improves performance (only relevant if you have hundreds of recipes and items/fluids) and lays the foundation for more features.