Commission Implementing Regulation (EU) 2021/78 of 27 January 2021 amending Implementing Regulation (EU) 2020/600 derogating from Implementing Regulation (EU) 2017/892, Implementing Regulation (EU) 2016/1150, Implementing Regulation (EU) No 615/2014, Implementing Regulation (EU) 2015/1368 and Implementing Regulation (EU) 2017/39 as regards certain measures to address the crisis caused by the COVID-19 pandemic