I have installed TexMaker previously i was using TexStudio. I installed the latest MikTex console and installed TexMaker. However, when i am running my previous Tex file, i am getting an error. I found that that package amsmath.sty is causing a bug. When i disable it in the Tex file codes the document is compiled, indeed this package is important because i am using links to other sub Tex files.
Kindly if someone can help me out with this bug.
I have unstalled and reinstalled both MikTex and TexMaker.
I have tried TexStudio.
I have uploaded the main TexFile so that someone can amend and test it accordingly in case there is any outdated package which i am using.