Sounds like you had a minor blowoff, it's no problem unless your airlock clogs up and stops venting - that can cause a mess when the lid of your fermenter blows off under the pressure. If the bubbling has slowed dome some, give the airlock a quick rinse and resanitize and replace it. If it's still going strong, consider replacing the airlock with a blowoff tube for a couple of days. That is simply a sanitized hose attached to the fermenter, with the other end in a jug of water to keep germs out.
Either way your batch of beer should be just fine.