POS won’t load / blank screen

Causes & fixes

• Not logged in: Log in to WordPress first, then open /posoria/
• JavaScript error: Disable conflicting plugins temporarily; check browser console
• REST API blocked: Ensure /wp-json/posoria/v1/ is reachable (not blocked by security plugin)
• Cache: Exclude POS URL from full-page cache
• Permalinks: Re-save permalinks or use ?posoria=1 fallback