Troubleshot GFI in basement by the panel. Found loose wires on the GFI which damaged the GFI. Furnished, wired, and replaced said GFI. GFI works as it should. Performed panel maintenance and tightened all connections. During panel maintenance, found and corrected neutrals bundled up under the same screws. All neutrals and grounds are now separate as they should be. Furnished, wired, and installed surge protection in the panel.