Ic2 experimental to normal ic2

I have a small server with ic2 experimental and a few other mods, now the ic2 experimental recipes are becoming very hard to achieve in comparison to recipes in regular ic2 so i was trying to change the mod. The problem is that when i try to change it says that some ids mismatch from the world. How could i do this? Thank you

When i click continue in the mismatch page it crashes, i tryed deleting all the experimental items but it countinues crashing