Publishing with NPM not working

Hello all developers!

I have been working on my webapp for a long time on this fantastic platform and I am ready to publish. The problem thogh is that every time I try to publish it (by using npm run build), there is a new error. My webapp is complex and consists of a lot of pages, so there are a lot of problems of course, (but it works in the prototyper). Do you guys have any advice on how to speed up this process, it takes a loooooong time. Maybe you have some certain commands you tell the Gemini prototyper, or just general advice on how to speed up the process.

I would want my app to get launched ASAP so I am very greatful for any tips, help or advice I can get.