XF 1.5 I honestly have no idea what happened to my forum


Haven't modified any templates or software recently but suddenly my forum has exhibited numerous changes and glitches.
I am wondering... would it suddenly inherit these properties from an old template..? I don't know what happened or how to fix all these issues that suddenly appeared.

> notice bar doesn't load correctly
> signatures and profile text are huge
> unable to click links on shoutbox page

Any help is appreciated.