Hi @Geertje Burgers,
Please note that the latest version of Photoshop is compatible with macOS starting from macOS Ventura (version 13.5.1) and cannot be installed on macOS v11.x (Big Sur) or earlier versions.
Could you please confirm if you're experiencing this issue with all Creative Cloud applications or only with Photoshop and Illustrator? If the issue affects all apps, I recommend reassigning the license to your account via the Adobe Admin Console. This ensures the license is correctly applied to your Adobe ID.
Additionally, please check the following to help resolve the issue:
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Network Endpoints: Ensure that access to the required Adobe Creative Cloud network endpoints is allowed in your environment. For a detailed list of the endpoints, see Adobe's documentation on Creative Cloud Network Endpoints.
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Firewall and Antivirus Settings: Review your firewall and antivirus settings to ensure they are not blocking Adobe services. For more details, refer to Adobe's guide on Troubleshooting Creative Cloud Download and Install Issues.
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Proxy Server: If you're using a proxy server, verify the proxy settings are correctly configured for Creative Cloud apps. For guidance, see Adobe’s instructions on Proxy Support for Creative Cloud Apps.
Please let me know if the issue persists after following these steps, and we’ll assist you further.