Hello @wany,
We would like to inform you that we have not identified any issues locally regarding the banner image. Therefore, we assume that this error may be occurring due to a conflict with other plugins or themes on your site. To address this, we recommend taking your site to a minimal state and observing if the problem persists. Here are the steps you can follow:
- Deactivate all plugins except Dokan Lite and WooCommerce.
- Switch to a stable theme, such as Storefront.
- Clear your site cache as well as the browser cache, and then try again.
In case the issue is resolved, it indicates that there is a conflicting plugin or theme installed on your website. To identify the responsible plugin/theme, it is recommended to carry out a thorough conflict test. You can refer to this third-party article for assistance in tracing the problematic plugin/theme. Once you have determined the conflicting plugin/theme, please reach out to the relevant support team for further assistance.
Thanks!