At 19:02 of the second period in the Avalanche/Oilers game, Colorado requested a Coach's Challenge to review whether Drake Caggiula interfered with Jonathan Bernier prior to his goal.

After reviewing all available replays and consulting with NHL Hockey Operations staff, the Referee determined that Edmonton's Caggiula pushed Bernier's glove across the goal line. According to Rule 78.5 (ix)"Apparent goals shall be disallowed by the Referee when a goaltender has been pushed into the net together with the puck after making a save."
Therefore the original call is overturned - no goal Edmonton Oilers.
Since the Coach's Challenge resulted in the original call being overturned, the Colorado Avalanche retain their time-out.