not entirely sure what exactly this column is supporting and lateral forces subjected to. From what I can see doesn't seem to be a problem. The two 'cracks' are actually at right angles to each other, which is a bit unexpected if that side of the column was in tension up to plastic failure (this is your concern). Take a look at the flange edge and inside face of the flange. If everything looks good there, and considering columns usually are in compression, there's probably nothing to worry about.