Reference

Error Codes

6 min read Updated June 26, 2026 KWT Labs v1.3

KWT Labs applications display error codes to help identify issues quickly. Find your code below for meaning and recommended solutions.

License Errors

Code	Meaning	Solution
`LICENSE-101`	Invalid or unrecognized license key	Verify the key was copied correctly with no extra spaces. Check you're using the key for the correct product. Contact support if the key was never activated.
`LICENSE-102`	License already activated on another machine	Deactivate on the old PC first (Help → Deactivate). Wait 5 minutes, then retry activation.
`LICENSE-103`	License expired (subscription)	Renew your subscription via the link in your expiry email or contact sales@kwtlabs.com.
`LICENSE-104`	Cannot reach license server	Check internet connection and firewall. Use offline activation if the network blocks outbound HTTPS.

Code	Meaning	Solution
`SPIDER-301`	Crawl blocked by robots.txt	The start URL or a parent path is disallowed. Review robots.txt or disable "Respect robots.txt" if you own the site.
`SPIDER-302`	Connection timeout	Server is slow or unreachable. Increase timeout in Preferences or reduce thread count.
`SPIDER-401`	Authentication required	Add HTTP basic auth credentials under Crawl Settings → Authentication.
`SPIDER-502`	Update download failed	Download the latest installer manually from Downloads and install over the existing version.
`SPIDER-601`	Export failed — disk full	Free disk space on the export destination drive. Try exporting to Desktop first.

Code	Meaning	Solution
`MIND-201`	Project file is locked	Another instance has the file open. Close other Mind Studio windows or check if the file is syncing via cloud storage.
`MIND-202`	Corrupted project file	Restore from backup (.kwt.bak in the same folder). Auto-save creates backups every 15 minutes.
`MIND-301`	PDF export failed	Map may be too large. Try SVG export or collapse branches before exporting.

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