See how you can appeal here

https://support.google.com/adspolicy/answer/1704381?hl=en#zippy=%2Chow-to-appeal-policy-decisions-from-an-ads-status-column

The most common reasons an ad can be disapproved is

1. Destination not working
2. Destination mismatch
3. Capitalization
4. Punctuation and symbols
5. Malicious software
6. Sensitive events
7. Trademarks in ad text
8. Copyrighted content
9. Image quality
10. Misrepresentation
11. Inappropriate content
12. Unsupported language
13. Dishonest behavior
14. Dangerous products or services
15. Phone number in ad text
16. Repetition
17. Made for kids content
18. approved limited
19. Industry specific disapprovals

Make sure to double check the above check list and make sure your ad complies.