What new plugins did you install?
At a guess looking at your file comment out the “procourse” plugin. It is the last one in the list.
https://github.com/procourse/procourse-static-pages.git
The original plugin is no longer maintained. There is a fork.
That being said it might be broken again due to changes in core.
When installing plugins it is a bit of pain. But add one rebuild, check site if rebuild successful and site working. Proceed to install next plugin.