Complex sentence: On October 28,2015 Todorova was appointed as "Miss Universe Bulgaria 2015" by Mega Talent Group, franchise holders for Miss Universe in Bulgaria, as the pageant was not held due to lack of time in organizing the pageant.
Split into simpler sentences: On October 28,2015, Todorova was appointed as Miss Universe Bulgaria 2015 by Mega Talent Group, the franchise holders for Miss Universe in Bulgaria. The pageant was not held due to lack of time in organizing the pageant.