That's what i was about to say lmao
hey, go here and install this. Once it's installed, go to your downloads folder and rerun the program, problem solved.
Edit: I made an account for this
future reference... anything that says it's a winrar file but has jar at the end, is a jar file and should be opened with java. right click the file and press open with, and look for something to set java as default to open the file. happy modding!
It looks like you had OTG installed at one point and then removed it. Unfortunately OTG installs a component of itself into a 1.12.2 folder in your mods folder that tries to run whether the rest of the mod is there or not, and when the rest of the mod is NOT there you get this error. Just remove the otgcore file from the 1.12.2 folder.
The filenames of some of your mods suggests you are not getting them from official sources, please read my signature for more info on why this is a bad thing.