Hi everyone So... I tried again few times and everything is ok again... this oily / watery thing is FO, which is not combining with wax good and as second time (after candle with FO, in the same mold candle without FO) I just wiped mold, FO left in mold created this ugly thing on top of my candle... Need to wash / oven my molds every time, not just wipe them... (so stupid of me).. Anyway, thank you very much for your feedbacks and now I need to search how to fix my FO and wax sticking together problem...