Your DNS settings are set to “DNS only” so requests are going direct to your Digital Ocean origin and not through Cloudflare.
You need to set the DNS entries to be proxied if you want to apply Cloudflare services to your website.
Note that your origin certificate is unsigned so Full (strict) will result in an error. You should get a proper signed certificate in place on the origin so you can enable Full (strict) for best practice.
* Server certificate:
* subject: CN=*.cloudwaysapps.com
* start date: Apr 27 00:00:00 2023 GMT
* expire date: May 27 23:59:59 2024 GMT
* issuer: C=GB; ST=Greater Manchester; L=Salford; O=Sectigo Limited; CN=Sectigo RSA Domain Validation Secure Server CA
* SSL certificate verify result: self-signed certificate in certificate chain (19), continuing anyway.
If Cloudflare is your registrar, you can’t change the nameservers. You can pause Cloudflare to have requests be unproxied and go direct to your origin.
If Cloudflare isn’t your registrar, go to your registrar’s site and change them.
Best to find the root cause of your problem and fix it.