I started working with my PyCharm IDE and realized 3 changes has happened :
1. My todo and fixme comments are just regular comments
2. Python interpreter has disappeared from bottom right although when I right+click it is checked.
3. When I ctrl+click on functions from a package I'm using, instead of taking me to the function's definition, it says "Cannot find declaration to go to".
Note that I did not close my IDE yesterday and IDE runs my program without an issue. What is the possible cause and how to fix them?