We need to remove duplicate language files in this release to make translations easier. We removed quite a number of strings and also added new ones because of these new features.

Note the red area, are they debug information?

Which popup did you click to see the red background? As for the "update to es-apps-item", this will be fixed in the next release. Temporarily, apply the fix here, https://stackideas.com/forums/unwanted-red-text-string-in-app-page

Every popup window, I am going to cry It took me a long time to find the language string and translate them into Chinese, now I have to check them all again!

Provide us with the steps to replicate the popup issue.

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Looks like the dialog is caused by the custom styling in your template. Here's something you can do to quickly fix it:

[gist]
body #es .es-dialog-footer-content {
background: none;
}

body #es .es-dialog-footer-content button,
body #es .es-dialog-footer-content a {
border-radius: 0 !important;
border: 0 !important;
padding: 0 !important;
}
[/gist]

I don't know how to apply this to css file.

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Only group admin can share audios , members can not share audios.

Refer to the documentation of cmsbold to insert custom css. Most template clubs renders a custom.css using /templates/TEMPLATE_NAME/css/custom.css

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Only group admin can share audios , members can not share audios.

Check this bug

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other languages text will appear blank on avatar picture.

Can you kindly please start a new thread for each issue rather than posting them all here? It will be easier for us to keep track in our ticketing system.