Unable to edit my previous projects since switching to Creative Cloud

Here is the error message I get. Thank you for your help!

URL: https://express.adobe.com/sp/design/page/urn:aaid:sc:EU:695e20ae-0acb-4582-897a-f2b695e86612

AdobeId: 896E55FC5F7826360A495C90@AdobeID

Time: Tue Dec 14 2021 07:37:09 GMT+0100 (Central European Standard Time)

Error: AdobeDCXError: [NETWORK_ERROR] Error downloading an asset