Mahoon Lagoon,
By the look of it they could be real gaps/white paths between the coloured paths.
Have you tried to go really close and/or look in the expanded Layers panel and see whether you can select the seemingly white parts?
If that is the case, I believe it could be possible to include them/each in (the preferred) one of the adjacent coloured paths with Shape Builder/Live Paint, or with Pathfinder Unite.
Or if applicable for the pruposes, for each gap (set) you can extend either of the adjacent paths to underlap the other.