According to the timetable for submission of applications from the Guidelines for Grant Applicants – 2nd Call for Proposals, 17 January 2019 is the deadline for request clarifications from the Joint Technical Secretariat and 24 January 2019 is the last date on which clarifications are issued by the Joint Technical Secretariat.
Therefore, if you still have questions regarding the second call for proposals, sent them by tomorrow at the latest to JTS at:
Make sure you will get answers to all your questions!