Question: Construct a regular expression that recognizes the following language of strings over the alphabet { 0 , 1 } : { w in Sigma

Construct a regular expression that recognizes the following language of strings over the alphabet {0,1} :
{w in \Sigma * : w contains an even number of occurrences of 0011 as a substring}
everytime I have submitted this it is COMPLETELY WRONGGGGG
either it accepts 0011 when it shouldn't, it doesn't accept the empty string when it should, or something else. Please help. so sick of this problem

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