Modpack not loading in mods

[Aelitafan101]

I made a modpack for a few friends and I to play on and have fun, I followed multiple tutorials and did everything right (I hope). When I was finished it worked! But only for me and one other friend, everyone else could download and launch the modpack but it would just show up as Vanilla Minecraft with out a single mod. I've tried removing mods in case it was too big of a download or something but nothing seems to be working. If anyone has found a solution to a problem like this please let me know! Thank you.

Modpack- https://www.technicpack.net/modpack/our-perfectly-immortal.1458370

[JaariAtmc]

Two things: Only download mods from Curseforge (yes, it is obvious you didn't in most cases). Also, remove the .jar from your modpack.jar in the bin folder.

[Aelitafan101]

Oh thanks! That fixed it, I've been worry about this for a while and it's great to actually have it working now! Thank you so much!