Any ideas?

update nextjs to 15 why working on 12?

bc it is working... maybe i should upgrade to 15 but it will be long process

is it a static website or dynamic. If static not much time i think if dynamic might need to figure out

dynamic... its a hobby website but as vercel said they wont support the old node ver a solution will need to be found

i too upgraded my own website node18 maintenance has stopped and node 22 has LTS now so better stick to node 22

is there a way to upgrade the node ver and staying at next ver 12?

I don't think it is possible

Just upgrade to nextjs 15 smh, you can use the pages router in nextjs 15 just fine, using the app router is not a requirement. Other than that there are few breaking changes unless you used beta/experimental features of nextjs 12

Nextjs 12 is way too old for anyone here to be able to provide detailed support for at this point. It’s like going to some windows forum and ask for support on how to debug a windows 95 error - few will be able to help you