How do I fix 500 Internal Server Error on /api/v2/analytics/interactions for weekly performance dashboard sync?

How do I fix the 500 Internal Server Error hitting the /api/v2/analytics/interactions endpoint every Monday at 06:00 PT? The external reporting vendor keeps failing on the pull request for weekly agent performance metrics across our thirty-person queue. Dashboard shows blank rows for handle time and after-call work. Manual CSV exports from supervisor console are taking three hours every morning. It’s dragging down the coaching schedule completely. System logs show payload timeout after thirty seconds. Vendor team says Genesys side drops the request because date range query exceeds default limit. Changing filter to single day switched error to 403 Forbidden on same endpoint. Permissions look correct in admin portal. Service account holds Read access for Analytics and Reporting. Queue metrics load fine in web UI. API just refuses batch request. SLA tracking is completely broken right now. Managers don’t see real-time adherence during peak hours. External tool keeps retrying same call and flooding logs with identical failure stamps. Weekly summaries need to auto-populate before 08:00 PT standup. Vendor dashboard shows connection status as disconnected after three failed attempts. IP allowlist matches documentation perfectly. Error response body just returns generic error code 500 with no stack trace. Interaction records are required for coaching reviews. Data pipeline stops completely at authentication step.