# Troubleshooting

Most problems show a message in Offloft that says what's wrong and how to fix it. These pages take each message in turn. While you fix it, your site keeps using its local files, because Offloft never serves a file it hasn't verified.

Find your message below, or search for its exact words. If you still need help, the [support page](/support) lists what to send.

- ["Credentials not accepted": the key or secret was refused](https://www.offloft.com/docs/troubleshooting/credentials-not-accepted): Fix InvalidAccessKeyId and SignatureDoesNotMatch errors when connecting WordPress to your storage.
- ["There's no bucket called ...": bucket not found](https://www.offloft.com/docs/troubleshooting/no-bucket): Fix a bucket Offloft can't find, usually a spelling, region, endpoint or Cloudflare account mismatch.
- ["The bucket is in a different region"](https://www.offloft.com/docs/troubleshooting/different-region): Fix AuthorizationHeaderMalformed, PermanentRedirect and IllegalLocationConstraintException errors.
- ["These credentials have expired"](https://www.offloft.com/docs/troubleshooting/credentials-expired): Fix ExpiredToken and InvalidToken errors by creating a new access key.
- [Server clock out of sync (RequestTimeTooSkewed)](https://www.offloft.com/docs/troubleshooting/server-clock): Fix "Your server's clock is wrong, so the provider rejected the request."
- ["That bucket name is already taken"](https://www.offloft.com/docs/troubleshooting/bucket-name-taken): Fix BucketAlreadyExists by adding something of your own to the bucket name.
- [Bucket name rules ("That isn't a valid bucket name")](https://www.offloft.com/docs/troubleshooting/bucket-name-rules): Use 3 to 63 lowercase letters, digits and hyphens, starting and ending with a letter or digit.
- ["This account has reached its bucket limit"](https://www.offloft.com/docs/troubleshooting/bucket-limit): Fix TooManyBuckets by deleting an unused bucket or choosing an existing one.
- [Provider busy or temporarily down](https://www.offloft.com/docs/troubleshooting/provider-busy): What Offloft does when your provider throttles requests or stops answering, and what to do.
- [Delivery check fails](https://www.offloft.com/docs/troubleshooting/delivery-check-fails): Fix a delivery check that can't load the test image, from public access to DNS, certificates and CORS.
- [Images still load from my server](https://www.offloft.com/docs/troubleshooting/images-load-from-server): Why media keeps loading locally after you connect storage, and how to find out which reason applies.
- [A thumbnail is missing in the cloud](https://www.offloft.com/docs/troubleshooting/thumbnail-missing): Why a size is missing, and how Offloft regenerates, uploads and checks it.
- [Uploads stuck or slow](https://www.offloft.com/docs/troubleshooting/uploads-stuck): Fix "Background tasks aren't running" with Run now, a real cron job, or lower batch settings.

Updated 2026-11-06.

Source: https://www.offloft.com/docs/troubleshooting