Sprout forms internal server error after migration We migrated our dev-Website to the new server for launching the project. Everything works fine except Sprout Forms. We can't access the Plugins settings page in the control panel.

Error says internal server error, the template „sproutforms/settings/general“ can't be found.

After we call craft.sproutForms.someFunction() in the template our front-end stops rendering. Any ideas?
It sounds like you're missing some necessary Sprout Forms files.  Maybe they weren't FTP/copied over to the new server properly or if you're deploying from Git, maybe there was a gitignore rule that they got caught up in.

If you enable devMode, you'll probably get an error message on the front-end.

Regardless, I'd grab a fresh copy of the plugin and replace the existing craft/plugins/sproutforms folder with the new one.