I have an AI agent built with n8n, OpenRouter (ChatGPT 5.2), Browserless, RapidAPI, Google Sheets, and Squarespace integration. It was working correctly before another developer made changes. The system must be fully restored and optimised. What You Must Do - Fix the workflow error that is preventing the agent from responding (a webhook in another workflow is throwing an error and blocking execution). - Restore full agent functionality so it responds correctly on the WEBSITE (n8n preview does not count — only website behaviour matters). - Reduce website response time to under 60 seconds on the website, again n8n preview does not count — only website behaviour matters (it previously responded in ~60–70 seconds before changes were made). - Investigate scraper logic and related workflows to remove added latency without removing answer sections or reducing content. Fix AI behaviour: - Agent must follow and answer user queries correctly. Right now doesn't bring the desired result and ignores user wants. It should be solved. - Must return requested product links when asked. - Links must come from scraper results only. - No hallucinated or broken links. - Model is ChatGPT 5.2 via OpenRouter and must NOT be changed. - Verify YouTube (RapidAPI) integration returns English-only results and confirm TikTok scraper works correctly alongside YouTube filter. - Stabilise Google Sheets integration so it always fetches correctly without increasing response time. - Ensure Google login works on mobile like on desktop. - Ensure agent works on mobile exactly the same as desktop. - After everything is fixed and approved, ensure the agent is fully live and stable on Squarespace. Important Rules - You must diagnose first and explain the issue to me before applying any fix. - You cannot change architecture, model, or major logic without APPROVAL. - Removing answer sections to reduce time is NOT allowed. - Website performance is the only valid measurement (not n8n execution time). Requirements - Strong n8n experience (complex workflows, webhooks, branching, debugging) - Experience with AI agents and OpenRouter - API integration expertise - Experience with Squarespace or similar platforms - Strong debugging and performance optimisation skills I need someone who can start immediately and solve this properly. Deadline is 3 day and budget is fixed $350. Send your relevant experience and confirm you can handle complex n8n debugging before applying. If you are not a software engineer, please DON'T EVEN SEND A PROPOSAL. I need an engineer. Note: This job also requires signing NDA and IP agreements.