Disease? or rot at base of spikes, new Phal owner

[bday_phal]

Hello, I am new to this board.

I have only very recently become an orchid owner, Phals. Seem to have run into heartbreak already. One of my plants has a serious issue at the base of the spikes, so I thought this topic board seemed correct but if not please forgive.

I recently brought home a lovely double spiked Phal from the grocers because the flowers were too beautiful to not buy it ! It seemed pot bound already but I though I'd wait til the flowers dropped and repot.

Now I noticed and ugly looking, terrible ?disease process and have no idea what it is or what to do.

Wondering what in the world I can do for this plant and ALSO wonder if it's unusual coloring was actually indication of disease as i read somewhere that virus infections can alter color and give a "tie-dye" appearance. This isn't tie dye exactly but wanted your experienced ideas and opinions.
Thanks very much in advance. I never thought of owning these but was given one last month for my birthday and immediately 'knew' these were "my" plants.