# Troubleshooting

- [Timeout: we could not import your data within 9 minutes](https://docs.coupler.io/troubleshooting/timeout-we-could-not-import-your-data-within-9-minutes.md): Fix the Coupler.io timeout error when data imports exceed the 9-minute limit. Learn common causes and solutions to reduce import time and avoid failures.
- [Google 400 error: the server cannot process the request because it is malformed](https://docs.coupler.io/troubleshooting/google-400-error-the-server-cannot-process-the-request-because-it-is-malformed.md): Resolve the Google 400 "malformed request" error in Coupler.io. Find out what causes this issue with Google-based sources and how to fix it quickly.
- [Data doesn't match between the Source, Coupler preview, and Destination](https://docs.coupler.io/troubleshooting/data-doesnt-match-between-the-source-coupler-preview-and-destination.md): Troubleshoot data mismatches between your source, Coupler.io preview, and destination. Understand common reasons why data may differ and how to align it.
- [Coupler.io refused to connect](https://docs.coupler.io/troubleshooting/coupler.io-refused-to-connect.md): Fix the "Coupler.io refused to connect" error. Learn what causes connection issues with your browser or network and how to restore access to the platform.
- ["Import finished successfully, but data was truncated" warning](https://docs.coupler.io/troubleshooting/import-finished-successfully-but-data-was-truncated-warning.md): Understand the "data was truncated" warning in Coupler.io. Learn why your import may deliver partial results and how to ensure all rows are exported completely.


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