This is not a major issue for the laser itself, but a non-functional cooler means the laser cannot be run until further notice. LCC are working on fixing the issue as we speak. Stay tuned.
Thanks to @lukecyca for noticing the leak and acting quickly.
Update: tonight the cooler and coolant tubes that go into the laser where cleaned out. The leak in the cooler was sealed and may need sealed again tomorrow. The laser should be back soon and cooling better than ever once it’s confirmed that everything is running properly. Stay tuned.