Hey there!
Nice to meet you! I'm Darhyl, an Independent Advisor.
Based on your description, and considering other users have recently reported issues in Bing Image Creator, I would suggest submitting your feedback directly to the Microsoft Bing Team in order for them to properly review your concern regarding this error. You may submit your feedback through the link below: https://www.bing.com/images/create?FORM=GDPCLS
Click the Feedback option at the bottom right corner of the page > then submit your report.
Then, please contact Bing Support through this link: https://www.microsoft.com/concern/bing
Click on Image Creator > Other Concerns > Submit the form
Thank you for your kindness and understanding! Please let me know if you require further assistance.
Best regards,
Darhyl