Comprehensive CRO Audit & Fixes

We looking for a top-notch expert to take full ownership of auditing and completely fixing our e-commerce store. Current Status: Platform: WordPress/WooCommerce with some custom dashboard code. Catalog: 621 products total (Arabic/English), with around 226 active in-stock items per language. Tracking: Meta Pixel with Conversion API (Server-Side) is linked but needs full evaluation via Event Manager. Google Merchant Center: Active, but it is incorrectly pulling some product URLs from the subdomain instead of the main domain. The Core Issue: Good traffic, items are being added to the cart, but sales are ZERO. Through Microsoft Clarity, we caught critical JavaScript "Script errors" and sudden drop-offs/forced redirects to the cart page exactly when users trigger the payment gateway (APS/Payfort Checkout) on mobile/tablets. Project Scope (Full Handover): We want you to handle everything from A to Z if available. The project will be divided into 3 Fixed-Price Milestones: Milestone 1 ($75) - Full Audit & Technical Report: Analyze Clarity recordings, identify the exact JS/checkout errors, audit Meta CAPI/Event Manager, and diagnose the Google Merchant Center subdomain feed issue. Milestone 2 ($100) - Checkout & Payment Gateway Fix: Fix the plugin/custom code conflicts, resolve the JS errors, optimize checkout speed, and ensure the APS (Payfort) return loop works perfectly. Milestone 3 ($75) - Tracking & Merchant Center Fix: Fix all Meta Pixel/CAPI tracking parameters and correct the Google Merchant Center product feed routing. Total Budget: $250 - Negotiable.