I'm using the "Forge 1.12.2 Official" modpack and I'm trying to add some mods and every time I load it up it says something along the lines of "Please remove [insert some mod here] or update forge to 14.23.5.2770 and I have NO CLUE how to do that. I've looked up videos and articles and the sorts and haven't found ANYTHING for technic. PLEASE help. It has been hours. I need this step by step because I have no idea how to do almost anything besides add mods.