Hey, try saving your privacy policy document as a PDF file on google drive, then share the link for the pdf as the link for your privacy policy. Make sure the link is set as viewable by "anyone with the link" (but no editable). Works for me. It is also a good idea to actually read that privacy policy you generated from a random website, you can make some editing if relevant.
Then for your Ad situation, you have told Play Store that your app is suitable for children, then you must make sure that the ads on your AdMob account are also configured for that age range.
On you AdMob account, go to APP, choose the app in question, and go to BLOCKING CONTROLS. Have you explored this section of admob? It is really important.
Go to SENSITE CATEGORIES and make sure they are all disable if because none of them will be accepted by play store if you target children. Even ads like TIK TOK cannot be showed to kids... I have learned that the hard way.
You can also explore GENERAL CATEGORIES and see if there is any other category you want/need to hide.
The easiest way is actually just going to AD CONTENT RATING and changing the audience target, like this:
but be aware that decreasing the suitable-age target on admob can decrease your revenue ($)... So I give you 2 suggestions to find a balance:
ON the Play Developer Console, on the left menu go to Policy > App Content:
find CONTENT RATING and take a new test, this time check at least a couple of boxes like "my app has mild offensive language, mild violence, reference to farts... etc etc" this is just to change your app from being rated for ALL ages (like 4 year old kids) to kids over 10, or 12, or 14, depending on how you do the test. You can redo this test as much as needed. This will mostly not affect your downloads, since most kids dont have parental guidance anyway, but then the play store will tolerate Ads for older ages, like ads with references to kissing etc... (TIK TOK ads are for teens). THIS IS THE NICE GOOD GUY WAY OF DOING IT
NOW, IF YOU WANT TO PLAY SMART AND RISKY, DO THIS:
On AdMob, change your Ad Content Rating to GENERAL AUDIENCES (everyone) and then send you app update for the store. WAIT FOR IT TO BE APPROVED AND PUBLISHED, then you can go back to AdMob and change your Ad audience back to MATURE or TEENS if you like. Usually the person that reviews your app update on the store just needs to see the situation at that given time, once its published you can change the ads and relax, but be aware at random your app might be reviewed again and that update be suspended or something... So its a better idea to mix these 2 solutions I gave you.
I see that most of my revenue comes from Video Games ads, but lots of these ads show first-person shooter, etc, not really approved for kids. So I try to keep a rating of 10+ (age) or 14+, just so I can keep showing these profitable ads, even if my game is suitable for smaller children...
Hope this helps
quick edit:
indeed you dropbox link is fuc*kd up, you might have been lucky so far but no one else can access the privacy policy with the link you provided, your privacy policy must be ready to read once the link is clicked. convert easily to PDF with google docs and share the direct link for that file