# The thumbnail is blank. In the HTTP case, when the site is opened, it displays 502 **URL:** \ **Category:** Bug Reports\ **Created:** [April 3, 2025, 4:10am UTC](https://community.kinsta.com/t/the-thumbnail-is-blank-in-the-http-case-when-the-site-is-opened-it-displays-502/4963 "2025-04-03T04:10:06Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![octoberer](https://sea2.discourse-cdn.com/flex020/user_avatar/community.kinsta.com/octoberer/32/4595_2.png) [@octoberer](https://community.kinsta.com/u/octoberer)\ **Post date:** [April 3, 2025, 4:10am UTC](https://community.kinsta.com/t/the-thumbnail-is-blank-in-the-http-case-when-the-site-is-opened-it-displays-502/4963/1 "2025-04-03T04:10:06Z")
**Q: Date/Time this occurred (Provide your time zone also)** \*\*A:\*\*2025/4/3 **Q: DevKinsta Version** \*\*A:\*\*Latest version **Q: OS Version** \*\*A:\*\*Windows 11 **Q: Docker Desktop Version** \*\*A:\*\*Current version: 4.29.0 (145265) **Q: Were any error codes or messages observed? If so, what were they?** **A:** **Q: Detailed Description of the Problem** \*\*A:\*\*The site has been established, but the thumbnail is blank. In the HTTP case, when the site is opened, it displays 502. In the HTTPS case, the URL is [https://testdemo.local/](https://testdemo.local/) The webpage may temporarily be unreachable, or it may have permanently moved to a new URL. ---
**Author:** ![VladimirM](https://sea2.discourse-cdn.com/flex020/user_avatar/community.kinsta.com/vladimirm/32/2786_2.png) [@VladimirM](https://community.kinsta.com/u/VladimirM)\ **Post date:** [April 3, 2025, 6:15am UTC](https://community.kinsta.com/t/the-thumbnail-is-blank-in-the-http-case-when-the-site-is-opened-it-displays-502/4963/2 "2025-04-03T06:15:02Z")
Hello @octoberer 👋 Welcome to Kinsta community! Can you please share your main.log file so we can check the errors? You can obtain it like this. > **[Troubleshooting - Error Codes - Kinsta® Docs](https://kinsta.com/docs/devkinsta/devkinsta-troubleshooting/error-codes/#viewing-the-application-log-file)** > > Find out what error codes may be returned in DevKinsta, what each of them means, and how you can fix them. Kind regards! ---
**Author:** ![octoberer](https://sea2.discourse-cdn.com/flex020/user_avatar/community.kinsta.com/octoberer/32/4595_2.png) [@octoberer](https://community.kinsta.com/u/octoberer)\ **Post date:** [April 3, 2025, 7:08am UTC](https://community.kinsta.com/t/the-thumbnail-is-blank-in-the-http-case-when-the-site-is-opened-it-displays-502/4963/3 "2025-04-03T07:08:51Z")
[2025-04-03 14:31:37.452] [info] [getSiteMailbox] 1 emails retrieved. for domain panda.local [2025-04-03 14:31:37.483] [info] [useMailhog] Mail socket opened. [2025-04-03 14:31:37.570] [info] [containerExec] Command ‘cd /www/kinsta/public/panda && wp --allow-root --skip-themes --skip-plugins core version’ on devkinsta\_fpm finished with exit code 0 [2025-04-03 14:31:37.570] [info] [checkWpVersion] site’s current version 6.7.2 [2025-04-03 14:31:37.571] [info] [checkWpVersion] site’s stored version 6.7.2 [2025-04-03 14:31:37.571] [info] [checkWpVersion] containerExec response test true [2025-04-03 14:31:37.741] [info] [containerExec] Command ‘cd public/panda && wp --allow-root --skip-themes --skip-plugins db size --size\_format=b --url=[http://panda.local](http://panda.local)’ on devkinsta\_fpm finished with exit code 0 [2025-04-03 14:31:37.766] [info] [containerExec] Command ‘wp --allow-root --skip-themes --skip-plugins core is-installed --path=/www/kinsta/public/panda’ on devkinsta\_fpm finished with exit code 0 [2025-04-03 14:31:37.767] [info] [useWordpressCheck] panda is a wp site, setting it to WP. [2025-04-03 14:31:40.171] [info] [deactivateSite] Deactivating site panda. [2025-04-03 14:31:40.172] [info] [dockerUtil/getContainer] Get ‘devkinsta\_nginx’ Docker container [2025-04-03 14:31:40.177] [info] [watchDocker] Container: devkinsta\_nginx, status: exec\_create: /bin/sh -c sed -i ‘/^._error\_log._$/a \ \ return 404 “Site stopped by DevKinsta”;’ /etc/nginx/sites/panda.conf [2025-04-03 14:31:40.181] [info] [watchDocker] Container: devkinsta\_nginx, status: exec\_start: /bin/sh -c sed -i ‘/^._error\_log._$/a \ \ return 404 “Site stopped by DevKinsta”;’ /etc/nginx/sites/panda.conf [2025-04-03 14:31:40.199] [info] [watchDocker] Container: devkinsta\_nginx, status: exec\_die [2025-04-03 14:31:40.201] [info] [containerExec] Command ‘sed -i ‘/^._error\_log._$/a \ \ return 404 “Site stopped by DevKinsta”;’ /etc/nginx/sites/panda.conf’ on devkinsta\_nginx finished with exit code 0 [2025-04-03 14:31:40.202] [info] [restartNginx] Restarting nginx service [2025-04-03 14:31:40.346] [info] [watchDocker] Container: devkinsta\_nginx, status: exec\_create: nginx -s reload [2025-04-03 14:31:40.348] [info] [watchDocker] Container: devkinsta\_nginx, status: exec\_start: nginx -s reload [2025-04-03 14:31:40.369] [info] [watchDocker] Container: devkinsta\_nginx, status: exec\_die [2025-04-03 14:31:40.423] [info] [dockerUtil/getContainer] Get ‘devkinsta\_fpm’ Docker container [2025-04-03 14:31:40.424] [info] [isWpSite] Checking if panda is a Wordpress site [2025-04-03 14:31:40.424] [info] [ViewSite] checking site unread emails [2025-04-03 14:31:40.425] [info] [getSiteMailbox] Update site mailbox with API query: search?kind=containing&query=panda.local [2025-04-03 14:31:40.430] [info] Response: 200 OK ---
**Author:** ![octoberer](https://sea2.discourse-cdn.com/flex020/user_avatar/community.kinsta.com/octoberer/32/4595_2.png) [@octoberer](https://community.kinsta.com/u/octoberer)\ **Post date:** [April 3, 2025, 7:10am UTC](https://community.kinsta.com/t/the-thumbnail-is-blank-in-the-http-case-when-the-site-is-opened-it-displays-502/4963/4 "2025-04-03T07:10:06Z")
![2025-04-03_15-09-26](https://us1.discourse-cdn.com/flex020/uploads/kinsta/original/2X/2/26f843767ac7cf407a18aa7e6683abeab714e8b9.png) ---
**Author:** ![VladimirM](https://sea2.discourse-cdn.com/flex020/user_avatar/community.kinsta.com/vladimirm/32/2786_2.png) [@VladimirM](https://community.kinsta.com/u/VladimirM)\ **Post date:** [April 3, 2025, 9:26am UTC](https://community.kinsta.com/t/the-thumbnail-is-blank-in-the-http-case-when-the-site-is-opened-it-displays-502/4963/5 "2025-04-03T09:26:40Z")
Is that the whole main.log? It might be better to provide the file if possible. Thank you! ---
**Author:** ![samsularif](https://sea2.discourse-cdn.com/flex020/user_avatar/community.kinsta.com/samsularif/32/4627_2.png) [@samsularif](https://community.kinsta.com/u/samsularif)\ **Post date:** [April 16, 2025, 2:02pm UTC](https://community.kinsta.com/t/the-thumbnail-is-blank-in-the-http-case-when-the-site-is-opened-it-displays-502/4963/6 "2025-04-16T14:02:18Z")
> [@octoberer](#): > > **Q: Date/Time this occurred (Provide your time zone also)** > \*\*A:\*\*2025/4/3 > > **Q: DevKinsta Version** > \*\*A:\*\*Latest version > > **Q: OS Version** > \*\*A:\*\*Windows 11 > > **Q: Docker Desktop Version** > \*\*A:\*\*Current version: 4.29.0 (145265) > > **Q: Were any error codes or messages observed? If so, what were they?** > **A:** > > **Q: Detailed Description of the Problem** > \*\*A:\*\*The site has been established, but the thumbnail is blank. In the HTTP case, when the site is opened, it displays 502. In the HTTPS case, the URL is [https://testdemo.local/](https://www-tubidy.ws) The webpage may temporarily be unreachable, or it may have permanently moved to a new URL. Any new update sir @octoberer?