Tarawih prayers

This year I thought I didn't have to lead any Tarawih prayers. At my local surau, its four and four rakaah with a short lecture in between. For every single night, we have somebody coming to lead the prayers. However, there have been a few changes since then because of unavoidable circumstances. In the end, I have to take the lead for a few nights, albeit without the lecture. I don't want to be suddenly slapped with a charge of giving Islamic talks without permit. Last year, I lead the prayers for a few nights including giving the lecture but after a friend of mine was fined for giving talk without permit, I stopped. I don't have a degree in Islamic studies. Therefore, I can't have the permit.