Those messages just inform you that some ports were removed or added to a specific LACP group. To find out which one, do a "show sharing" and look for the port association.
Whether this means an impact to your service or not completely depends on your setup. Usually LACP is used to build redundancy, so it should not affect your service in a noticeable manner.
Side note: For LACP it is recommended to use 2, 4, 8 or 16 ports in one group.