Error msg in Media Picker

[LinnPower]

anyone have a clue why am I getting this error Msg in my Media Picker property editor?

thanks

[LuukPeters (Luuk Peters (Proud Nerds))]

What Umbraco version are you running?

[LinnPower]

im using v-15.4.1

[sebastiaan (Sebastiaan Janssen ⚓)]

It’s very difficult to help you with just an error message. I would encourage you to be more specific in asking this questions, explain something about your setup, what you’re trying to do and where and how it fails.

Here’s a guide on helping you improve your question:

Forum FAQs

What is a good forum question? A good forum question gives people enough information to actually help you. Vague questions waste everyone’s time — including yours. Here’s what makes a good question (and avoids common mistakes): Be Specific About Versions Always include the exact Umbraco version number (e.g., 14.0.2, not just Umbraco 14). If you’re not on the latest patch of that major version, the first answer you’ll get is: “Update to the latest patch”. Many bugs are already fixed there. De…

[LinnPower]

thanks for your response.

here i made it more clear:
I’ve just migrated my site from Umbraco 13.5.0 to Umbraco 15.0.1.

After the migration, the Media Picker property editor shows the following error when I open its settings in the backoffice:

As a result, whenever I try to use this property editor on a content node, the image picker is disabled and non-functional.

Expected: Media Picker should allow selecting and displaying media items as usual.
Actual: It displays an error in the settings, and images cannot be selected in content nodes.

What I’ve tried:

Restarting the application

Clearing browser cache

Re-saving the Data Type

Checked logs, but nothing obvious shows

Environment:

Running locally on Windows

SQL Server backend

No custom packages related to media or property editors

Any ideas what might be causing this, or where to dig deeper?

Thanks in advance!