Hello everyone, I’m asking for help with a little problem. I want to make a picture visible only in the full moon phase. I tried this but it does not work. Can someone help me and tell me what I’m doing wrong? Thank you.

$((Math.round((((((((367*#Dy#-((7*(#Dy#+((#DM#+9)/12)))/4)+((275*#DM#)/9)+#Dd#+1721013.5+#Dk#/24)-0.5*((100*#Dy#+#DM#-190002.5)/abs(100*#Dy#+#DM#-190002.5))+0.5)-2451550.1)/29.530588853)-floor((((367*#Dy#-((7*(#Dy#+((#DM#+9)/12)))/4)+((275*#DM#)/9)+#Dd#+1721013.5+#Dk#/24)-0.5*((100*#Dy#+#DM#-190002.5)/abs(100*#Dy#+#DM#-190002.5))+0.5)-2451550.1)/29.530588853))*29.530588853) 1000)/10)/100)12.19074911753505)>=156?100:$$((Math.round((((((((367#Dy#-((7(#Dy#+((#DM#+9)/12)))/4)+((275*#DM#)/9)+#Dd#+1721013.5+#Dk#/24)-0.5*((100*#Dy#+#DM#-190002.5)/abs(100*#Dy#+#DM#-190002.5))+0.5)-2451550.1)/29.530588853)-floor((((367*#Dy#-((7*(#Dy#+((#DM#+9)/12)))/4)+((275*#DM#)/9)+#Dd#+1721013.5+#Dk#/24)-0.5*((100*#Dy#+#DM#-190002.5)/abs(100*#Dy#+#DM#-190002.5))+0.5)-2451550.1)/29.530588853))*29.530588853)*1000)/10)/100)*12.19074911753505)>=194?0:$$