Could not connect to appstore

I used the official docker image to deploy nextcloud, but when I visited the web interface, I couldn’t display the contents of the app store. I saw the following error message in the log. How can I solve it? Thank you.

Could not connect to appstore: cURL error 28: Operation timed out after 60001 milliseconds with 86026 bytes received (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://apps.nextcloud.com/api/v1/apps.json