The Bundesliga game between Bayer Leverkusen and Borussia Dortmund was stopped for about nine minuted by referee Felix Zwayer, who walked off the pitch along with his officials.
The incident happened shortly after Dortmund had taken the lead at Bay Arena.
The incident occurred midway through the second half, when the ref gave a free-kick to Dortmund, after Sven Bender was fouled by Leverkusen striker Stefan Kiessling.
Matthias Ginter took the free kick correctly but some five yards away from the correct spot.
The move ended with a goal for Dortmund, with Pierre-Emerick Aubameyang netting his 31st goal of the season.