[What does it mean?] Your ad or website is promoting over-the-counter drugs without a license number, and that's not allowed for at least one country that your campaign targets. [What do I do now?] Remove all references to over-the-counter drugs without a license number from your ad and website. Alternatively, you can change your location targeting for your campaigns to target only countries where this service is allowed. See the section above for more detail around country-specific restrictions for the countries that you're targeting. [Disapproval reason] 
OTC drugs license number required