Can you find 5 mistakes in this organic molecule?
The five mistakes are:


Oxygen in the 5-member ring needs a positive charge [mentioned]
Carbon at the bottom should be a methylene, not methyl [mentioned]
Alkyne Group is not drawn in a linear fashion [mentioned in comments]
Carbon with $3^o$ alcohol has two substituents going out of the plane [mentioned in comments]
Chiral Carbon to the left of the oxygen in the 5-member ring has no stereochemistry indicated.


Now, 5 is not technically wrong but since the rest of the molecule is labelled for stereochemistry it is odd that this chiral center is not marked.