My copy of Opera developer 38 suddenly developed this problem today, first problem is, no matter what I download they are not completing, the full size of the file will be downloaded but a question mark appears on the status and remains as still downloading, when one file is like this, I can't download any other thing, I don't even get the save location dialogue when I try to download another file.

Second problem is, after not closing, it always keeps restarting with the message it crashed.

Is there a way to resolve this? Where are Opera developer's profiles and settings stored?