Sure, and really thanks to @Markus and you too! 
Yes, I hope it will be solved for @moses_mwale . BTW, at the sametime there was a similar topic with the same issue and it has been solved (Could not save event DHIS2 2.36.3 - Event Capture App - #4 by Markus). I didn’t know it was the same thing until @Markus answered 