Modding Complications

I'm trying to set up mods for a playthrough on my own. I'm using Thunderstore, I have selected ones I want. Problem is when I try to load into my world it just gets stuck, and if I interact with it, it crashes. I try reading the CMD window but I'm not seeing red text, just yellow. Hoping someone can spare some time this evening after I get off 2nd shift to help me out. Much appreciated for your reading