Some hosting services disable (but do not remove) the stream_wrapper_register function within PHP. I can write a plugin to test if the function exists, but not if it works on your server.
Recovering from a server failure is easy.
1. Rename the plugin file to something else.
2. disable the plugin in the plugin manager.
3. rename the plugin file back to its original name.
4. uninstall the extension.
If you had contacted me, I could probably have saved you some time.