I have already checked the KB article for this issue and the article is only applicable for one web server.
I experienced this error on my additional web server where all permissions folder are ok, done the re-installation, i even checked the web table and only two web servers are added. So, yeah I am here maybe some from the community here also experienced this issue in NPM v12.1 and able to resolve this.
I've already open a ticket but still no luck to get a response T_T
