Fix Laravel Site Cloudflare Issue

My corporate Laravel site was working fine with Cloudflare until I purged everything. Now, the landing page is blank.

Requirements:
- Diagnose and fix the blank landing page issue.
- Ensure site functions properly with Cloudflare after the fix.
- Ideally, you should have experience with Laravel and Cloudflare.
- Experience with debugging and resolving similar issues is a plus.

Please include:
- Estimated time for resolution.
- Any relevant experience with similar issues.